Herts Bird Club - WeBS 2024

The Wetland Bird Survey (WeBS) is organised nationally by the British Trust for Ornithology and supported by the WWT, RSPB and JNCC. Its principle aims are to identify population sizes, determine trends in numbers and distribution and to identify important sites for waterbirds across the UK.

In 2024 the Hertfordshire counts were organised by Cath Patrick (Lee Valley from Ware south) or centrally from BTO HQ (all other sites) and were undertaken by dedicated observers each month. Some sites are not surveyed during the summer months (April to August) but otherwise coverage is most comprehensive.

In 2024 the core count were the following Sundays: 14 Jan, 11 Feb, 10 Mar, 7 Apr, 12 May, 9 Jun, 21 Jul, 18 Aug, 22 Sep, 20 Oct, 17 Nov, 15 Dec. The scheme organisers have agreed that the Lee Valley counts can be undertaken the previous Saturday, and some counts were carried out on the previous or subsequent weekends.

Sincere thanks are due to everyone who contributes to this important monitoring project and especially to Cath for the co-ordination.

We are always looking for volunteers to assist with this national monitoring effort both to fill any gaps in the existing coverage but also to take on other sites which could hold significant numbers of waterfowl. The effort involves counting all such species at one wetland site each month on Saturday or Sunday. This should ideally happen every month but most importantly from January to March and September to December inclusive. If you are able to help in the Lee Valley please contact Cath Patrick (c/o LVRP, Myddleton House, Bull’s Cross, Enfield, EN2, 9HG). For elsewhere in Hertfordshire please contact the national organisers. Thank you.

Mute Swan
Canada Goose
Wigeon
Gadwall
Teal
Mallard
Shoveler
Pochard
Tufted Duck
Goldeneye
Little Grebe
Great Crested Grebe
Cormorant
Grey Heron
Moorhen
Coot

Mute SwanTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	39	50	33	30	18	21	32	37	35	26	26	26
Colne Valley:
Hampermill Lake	nc	nc	2	1	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	7	4	2	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	15	24	17	21	13	20	25	25	18	15	11	20
Maple Lodge NR	4	2	2	nc	0	nc	2	3	3	3	0	nc
Lynsters Lake	nc	nc	0	nc	3	1	1	1	3	nc	2	2
Pynesfield North/South Lakes	6	4	6	2	2	nc	2	2	3	2	2	3
Helicon Lake	14	12	0	2	0	0	0	0	2	0	2	0
Troy Mill Lake	0	1	2	2	0	0	2	6	6	6	9	1
Lea Valley:	44	44	61	29	23	27	16	70	81	115	71	72
Lea Valley:
East Hyde	2	2	2	2	2	4	2	4	4	4	2	3
Brocket Park	0	3	2	2	2	7	5	5	5	1	2	1
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	17	9
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
King's Meads	2	nc	nc	0	nc	1	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	2	6	0	nc	0	nc	0	0	0	0	nc	0
Amwell NR - others	6	6	4	2	2	2	0	8	6	7	10	12
Stanstead Innings	9	11	5	10	6	6	0	2	3	2	8	9
Rye Meads	7	3	31	nc	nc	nc	nc	nc	46	42	18	16
Broxbourne GP	1	4	4	5	3	3	2	3	9	1	8	8
Cheshunt GPs:	15	9	13	8	8	4	7	48	8	58	6	14
Cheshunt GPs:
Herts:	5	6	6	4	3	2	2	6	5	8	5	12
Herts:
Bowyers Water	2	2	2	2	2	1	2	3	2	2	2	3
Cheshunt Lake	0	0	2	0	0	1	0	1	2	2	2	0
North Met Pit	1	2	0	2	1	0	0	0	0	2	1	5
Slipe Lane Pits	0	0	0	0	0	0	0	0	0	0	0	2
Ashley Pit	2	2	2	0	0	0	0	2	1	2	0	2
ex-Herts:	6	3	3	3	3	2	5	10	3	4	0	2
ex-Herts:
Friday Lake	0	0	0	0	0	0	0	0	0	2	0	0
Hooks Marsh GP	1	1	0	2	2	0	0	3	0	0	0	0
Met Police Pit	3	0	1	1	1	2	1	0	1	0	0	0
Seventy Acres Lake	2	2	2	0	nc	0	4	7	2	2	0	2
Essex:	4	0	4	1	2	0	0	32	0	46	1	0
Essex:
Hall Marsh Scrape	1	0	0	1	2	0	0	0	0	0	1	0
Holyfield Marsh Lake	3	0	4	nc	nc	nc	nc	32	nc	46	nc	nc
Radwell Mill	16	17	19	19	9	nc	30	27	28	34	31	32
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	1	2	6	3	nc	nc	nc	nc	4	nc	4	3
Fairlands Valley Park	3	4	3	2	3	4	2	2	2	2	2	2
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	2	5	7	4	6	9	10	12	0	1	9	2
Tyttenhanger GPs - all	5	10	10	13	21	5	nc	6	8	2	nc	6
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	2	2
Hilfield Park Reservoir	3	0	2	2	3	3	3	13	11	7	2	0
Tring Reservoirs	22	17	nc	9	15	58	66	35	nc	25	29	25

Canada GooseTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	25	95	184	112	75	67	92	118	3	115	17	44
Colne Valley:
Hampermill Lake	nc	nc	14	5	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	38	66	70	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	23	55	84	30	54	67	92	74	0	115	17	42
Maple Lodge NR	2	2	4	nc	6	nc	0	0	0	0	0	nc
Lynsters Lake	nc	nc	12	nc	13	0	0	40	1	nc	0	0
Pynesfield North/South Lakes	0	0	0	1	0	nc	0	0	0	0	0	0
Helicon Lake	0	0	4	6	0	0	0	4	2	0	0	0
Troy Mill Lake	0	0	0	0	2	0	0	0	0	0	0	2
Lea Valley:	188	422	326	326	303	350	363	383	876	224	235	354
Lea Valley:
East Hyde	82	134	110	126	118	56	137	110	484	131	87	115
Brocket Park	8	3	2	4	4	3	5	6	77	10	105	84
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	27	44
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	5	6
King's Meads	0	nc	nc	0	nc	4	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	0	4	3	nc	1	nc	1	0	0	0	nc	0
Amwell NR - others	28	28	87	66	98	96	42	61	33	3	2	12
Stanstead Innings	32	18	21	26	42	49	18	4	23	2	4	35
Rye Meads	2	29	39	nc	nc	nc	nc	nc	1	6	0	5
Broxbourne GP	0	7	4	15	8	9	12	43	0	66	0	7
Cheshunt GPs:	36	199	60	89	32	133	148	159	258	6	5	46
Cheshunt GPs:
Herts:	7	10	22	34	16	79	69	29	4	6	2	26
Herts:
Bowyers Water	0	1	11	13	5	29	23	19	0	0	0	0
Cheshunt Lake	5	2	4	0	0	13	12	2	0	6	0	6
North Met Pit	0	3	7	7	9	37	34	0	2	0	2	20
Slipe Lane Pits	0	0	0	0	0	0	0	0	0	0	0	0
Ashley Pit	2	4	0	14	2	0	0	8	2	0	0	0
ex-Herts:	8	18	29	49	13	52	79	63	254	0	3	0
ex-Herts:
Friday Lake	2	2	0	0	2	0	8	0	0	0	0	0
Hooks Marsh GP	0	0	4	9	6	7	9	0	0	0	0	0
Met Police Pit	0	0	2	5	5	0	10	0	2	0	1	0
Seventy Acres Lake	6	16	23	35	nc	45	52	63	252	0	2	0
Essex:	21	171	9	6	3	2	0	67	0	0	0	20
Essex:
Hall Marsh Scrape	0	9	9	6	3	2	0	0	0	0	0	20
Holyfield Marsh Lake	21	162	0	nc	nc	nc	nc	67	nc	0	nc	nc
Radwell Mill	6	7	2	10	13	nc	17	5	0	12	7	2
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	12	0	14	30	nc	nc	nc	nc	10	nc	0	9
Fairlands Valley Park	95	69	36	25	21	115	146	46	31	159	61	70
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	70	57	61	47	72	134	58	64	5	4	83	60
Tyttenhanger GPs - all	80	0	34	25	25	55	nc	192	367	62	nc	50
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	50	20	50
Hilfield Park Reservoir	4	5	4	7	5	146	4	17	0	0	0	0
Tring Reservoirs	144	8	nc	16	19	212	95	19	nc	4	15	0

WigeonTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	25	13	0	0	0	0	0	0	0	2	15	18
Colne Valley:
Hampermill Lake	nc	nc	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	13	7	0	0	0	0	0	0	0	2	0	11
Maple Lodge NR	2	0	0	nc	0	nc	0	0	0	0	0	nc
Lynsters Lake	nc	nc	0	nc	0	0	0	0	0	nc	0	0
Pynesfield North/South Lakes	10	6	0	0	0	nc	0	0	0	0	0	7
Helicon Lake	0	0	0	0	0	0	0	0	0	0	0	0
Troy Mill Lake	0	0	0	0	0	0	0	0	0	0	15	0
Lea Valley:	4	23	27	0	0	0	0	0	12	28	0	6
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	0	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
King's Meads	2	nc	nc	0	nc	0	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	0	0	0	nc	0	nc	0	0	0	0	nc	0
Amwell NR - others	1	0	0	0	0	0	0	0	2	14	0	0
Stanstead Innings	1	0	0	0	0	0	0	0	0	0	0	0
Rye Meads	0	0	0	nc	nc	nc	nc	nc	10	4	0	6
Broxbourne GP	0	0	0	0	0	0	0	0	0	0	0	0
Cheshunt GPs:	0	23	27	0	0	0	0	0	0	10	0	0
Cheshunt GPs:
Herts:	0	0	0	0	0	0	0	0	0	0	0	0
Herts:
Bowyers Water	0	0	0	0	0	0	0	0	0	0	0	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
North Met Pit	0	0	0	0	0	0	0	0	0	0	0	0
Slipe Lane Pits	0	0	0	0	0	0	0	0	0	0	0	0
Ashley Pit	0	0	0	0	0	0	0	0	0	0	0	0
ex-Herts:	0	0	0	0	0	0	0	0	0	0	0	0
ex-Herts:
Friday Lake	0	0	0	0	0	0	0	0	0	0	0	0
Hooks Marsh GP	0	0	0	0	0	0	0	0	0	0	0	0
Met Police Pit	0	0	0	0	0	0	0	0	0	0	0	0
Seventy Acres Lake	0	0	0	0	nc	0	0	0	0	0	0	0
Essex:	0	23	27	0	0	0	0	0	0	10	0	0
Essex:
Hall Marsh Scrape	0	11	17	0	0	0	0	0	0	0	0	0
Holyfield Marsh Lake	0	12	10	nc	nc	nc	nc	0	nc	10	nc	nc
Radwell Mill	0	0	0	0	0	nc	0	0	0	0	0	0
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	14	0	0	0	nc	nc	nc	nc	11	nc	26	22
Fairlands Valley Park	0	0	0	0	0	0	0	0	0	0	0	0
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	0	0	0	0	0	0	0	0	0	0	0
Tyttenhanger GPs - all	1	0	0	0	0	0	nc	0	4	10	nc	2
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Hilfield Park Reservoir	40	10	2	0	0	0	0	0	2	0	2	15
Tring Reservoirs	80	27	nc	0	0	0	0	0	nc	104	100	85

GadwallTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	38	35	57	9	3	5	172	153	30	56	31	25
Colne Valley:
Hampermill Lake	nc	nc	0	2	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	9	2	8	4	3	4	31	26	10	29	4	4
Maple Lodge NR	5	25	44	nc	0	nc	127	86	11	12	4	nc
Lynsters Lake	nc	nc	3	nc	0	0	0	0	0	nc	0	0
Pynesfield North/South Lakes	17	6	2	0	0	nc	0	0	0	0	0	20
Helicon Lake	7	2	0	0	0	1	0	0	0	0	0	1
Troy Mill Lake	0	0	0	3	0	0	14	41	9	15	23	0
Lea Valley:	278	227	215	56	22	51	275	149	439	482	274	293
Lea Valley:
East Hyde	0	20	6	6	6	2	3	3	3	0	0	2
Brocket Park	0	0	0	3	0	3	6	0	0	0	0	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	6	0
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
King's Meads	0	nc	nc	2	nc	8	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	0	0	2	nc	3	nc	2	0	0	0	nc	0
Amwell NR - others	35	21	30	17	2	24	134	46	23	56	58	81
Stanstead Innings	56	20	16	7	3	1	41	41	20	14	16	25
Rye Meads	172	146	125	nc	nc	nc	nc	nc	379	290	172	139
Broxbourne GP	5	0	0	0	0	0	0	0	2	0	10	39
Cheshunt GPs:	10	20	36	21	8	13	89	59	12	122	12	7
Cheshunt GPs:
Herts:	2	6	13	7	5	4	1	8	4	0	5	0
Herts:
Bowyers Water	0	6	10	1	0	0	0	8	2	0	0	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
North Met Pit	0	0	0	4	5	2	1	0	0	0	0	0
Slipe Lane Pits	0	0	0	2	0	0	0	0	0	0	0	0
Ashley Pit	2	0	3	0	0	2	0	0	2	0	5	0
ex-Herts:	8	6	15	6	3	9	88	9	8	0	7	7
ex-Herts:
Friday Lake	0	0	0	0	0	0	0	0	0	0	0	0
Hooks Marsh GP	4	2	7	3	3	0	26	5	1	0	5	3
Met Police Pit	0	0	0	2	0	0	0	2	2	0	0	0
Seventy Acres Lake	4	4	8	1	nc	9	62	2	5	0	2	4
Essex:	0	8	8	8	0	0	0	42	0	122	0	0
Essex:
Hall Marsh Scrape	0	4	4	8	0	0	0	0	0	0	0	0
Holyfield Marsh Lake	0	4	4	nc	nc	nc	nc	42	nc	122	nc	nc
Radwell Mill	3	3	1	7	3	nc	0	2	8	0	1	4
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	80	55	46	17	nc	nc	nc	nc	50	nc	69	60
Fairlands Valley Park	0	0	0	0	0	0	0	0	0	0	0	0
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	0	1	3	2	0	0	0	0	0	0	0
Tyttenhanger GPs - all	5	8	24	0	8	4	nc	7	38	40	nc	4
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	2	0
Hilfield Park Reservoir	9	2	2	2	0	26	0	13	4	8	16	20
Tring Reservoirs	57	62	nc	7	6	41	32	28	nc	26	29	33

TealTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	2	2	0	0	0	0	0	0	0	1	9	5
Colne Valley:
Hampermill Lake	nc	nc	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	0	0	0	0	0	0	0	0	0	0	3	5
Maple Lodge NR	2	2	0	nc	0	nc	0	0	0	1	6	nc
Lynsters Lake	nc	nc	0	nc	0	0	0	0	0	nc	0	0
Pynesfield North/South Lakes	0	0	0	0	0	nc	0	0	0	0	0	0
Helicon Lake	0	0	0	0	0	0	0	0	0	0	0	0
Troy Mill Lake	0	0	0	0	0	0	0	0	0	0	0	0
Lea Valley:	136	98	97	10	0	0	0	2	88	60	83	115
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	0	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
King's Meads	0	nc	nc	0	nc	0	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	0	0	1	nc	0	nc	0	0	0	0	nc	7
Amwell NR - others	5	0	8	10	0	0	0	1	5	10	4	8
Stanstead Innings	0	0	13	0	0	0	0	0	0	8	16	15
Rye Meads	120	71	54	nc	nc	nc	nc	nc	82	42	62	78
Broxbourne GP	0	0	0	0	0	0	0	0	0	0	0	0
Cheshunt GPs:	11	27	21	0	0	0	0	1	1	0	1	7
Cheshunt GPs:
Herts:	4	0	0	0	0	0	0	1	1	0	0	0
Herts:
Bowyers Water	4	0	0	0	0	0	0	1	1	0	0	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
North Met Pit	0	0	0	0	0	0	0	0	0	0	0	0
Slipe Lane Pits	0	0	0	0	0	0	0	0	0	0	0	0
Ashley Pit	0	0	0	0	0	0	0	0	0	0	0	0
ex-Herts:	0	0	0	0	0	0	0	0	0	0	1	0
ex-Herts:
Friday Lake	0	0	0	0	0	0	0	0	0	0	0	0
Hooks Marsh GP	0	0	0	0	0	0	0	0	0	0	0	0
Met Police Pit	0	0	0	0	0	0	0	0	0	0	0	0
Seventy Acres Lake	0	0	0	0	nc	0	0	0	0	0	1	0
Essex:	7	27	21	0	0	0	0	0	0	0	0	7
Essex:
Hall Marsh Scrape	3	19	4	0	0	0	0	0	0	0	0	7
Holyfield Marsh Lake	4	8	17	nc	nc	nc	nc	0	nc	0	nc	nc
Radwell Mill	0	0	0	0	0	nc	0	0	0	0	0	0
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	18	15	4	0	nc	nc	nc	nc	9	nc	26	48
Fairlands Valley Park	4	0	4	0	0	0	0	0	0	0	0	0
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	0	0	0	0	0	0	0	0	0	0	0
Tyttenhanger GPs - all	40	13	2	0	0	0	nc	1	22	80	nc	59
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	5	0
Hilfield Park Reservoir	2	16	0	0	0	0	0	0	0	0	0	8
Tring Reservoirs	98	69	nc	8	0	1	1	53	nc	271	153	190

MallardTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	17	43	67	22	17	20	22	17	31	36	13	20
Colne Valley:
Hampermill Lake	nc	nc	29	3	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	13	6	5	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	5	0	6	4	5	8	2	11	9	11	2	6
Maple Lodge NR	5	15	17	nc	0	nc	2	0	8	17	6	nc
Lynsters Lake	nc	nc	1	nc	0	0	0	0	4	nc	0	0
Pynesfield North/South Lakes	0	3	1	2	1	nc	5	0	3	0	0	5
Helicon Lake	3	5	2	3	0	0	0	0	1	3	0	1
Troy Mill Lake	4	7	5	5	11	12	13	6	6	5	5	8
Lea Valley:	295	267	196	131	107	175	211	121	255	238	353	321
Lea Valley:
East Hyde	16	12	18	12	14	14	12	14	7	11	11	22
Brocket Park	8	11	12	6	11	21	36	8	26	15	9	35
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	65	38
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	30	24
King's Meads	4	nc	nc	0	nc	0	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	6	17	7	nc	5	nc	0	14	7	9	nc	5
Amwell NR - others	38	12	12	15	13	19	10	16	11	22	23	14
Stanstead Innings	37	16	8	10	8	31	25	8	20	35	12	26
Rye Meads	49	34	32	nc	nc	nc	nc	nc	88	29	76	30
Broxbourne GP	17	9	11	12	12	2	10	1	9	8	2	9
Cheshunt GPs:	120	156	96	76	44	88	118	60	87	109	125	118
Cheshunt GPs:
Herts:	31	90	38	43	26	55	66	41	29	52	62	55
Herts:
Bowyers Water	11	17	12	10	13	27	35	24	8	11	17	19
Cheshunt Lake	2	3	3	1	0	2	0	1	0	8	13	0
North Met Pit	0	45	15	24	8	23	29	11	19	20	32	29
Slipe Lane Pits	0	1	5	2	0	3	0	0	0	4	0	0
Ashley Pit	18	24	3	6	5	0	2	5	2	9	0	7
ex-Herts:	56	28	52	31	12	31	50	19	57	41	63	60
ex-Herts:
Friday Lake	0	0	0	0	1	0	0	0	2	2	0	0
Hooks Marsh GP	11	0	16	12	10	4	5	1	4	6	7	11
Met Police Pit	0	0	6	2	1	0	2	6	8	2	8	5
Seventy Acres Lake	45	28	30	17	nc	27	43	12	43	31	48	44
Essex:	33	38	6	2	6	2	2	0	1	16	0	3
Essex:
Hall Marsh Scrape	5	6	6	2	6	2	2	0	1	0	0	3
Holyfield Marsh Lake	28	32	0	nc	nc	nc	nc	0	nc	16	nc	nc
Radwell Mill	10	22	4	15	10	nc	11	20	20	26	7	12
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	23	20	18	15	nc	nc	nc	nc	10	nc	28	19
Fairlands Valley Park	80	65	34	20	14	40	114	71	69	69	78	49
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	14	12	10	15	19	39	25	39	18	36	18	21
Tyttenhanger GPs - all	12	21	15	5	15	14	nc	3	14	23	nc	31
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	6	26	6
Hilfield Park Reservoir	5	5	2	2	4	4	67	31	7	6	8	5
Tring Reservoirs	81	69	nc	59	49	80	218	196	nc	119	87	76

ShovelerTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	19	27	21	0	1	0	0	3	13	31	36	7
Colne Valley:
Hampermill Lake	nc	nc	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	15	9	16	0	0	0	0	0	4	30	29	5
Maple Lodge NR	4	5	5	nc	0	nc	0	3	9	1	7	nc
Lynsters Lake	nc	nc	0	nc	0	0	0	0	0	nc	0	0
Pynesfield North/South Lakes	0	2	0	0	0	nc	0	0	0	0	0	1
Helicon Lake	0	0	0	0	0	0	0	0	0	0	0	0
Troy Mill Lake	0	11	0	0	1	0	0	0	0	0	0	1
Lea Valley:	229	219	179	1	2	1	14	17	139	176	101	155
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	0	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	4
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
King's Meads	5	nc	nc	0	nc	0	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	6	21	2	nc	0	nc	0	0	0	0	nc	8
Amwell NR - others	32	26	37	0	0	1	0	13	30	29	11	13
Stanstead Innings	2	4	8	0	0	0	6	0	4	4	2	4
Rye Meads	104	89	45	nc	nc	nc	nc	nc	91	42	52	48
Broxbourne GP	0	0	0	0	0	0	0	0	0	23	0	0
Cheshunt GPs:	80	79	87	1	2	0	8	4	14	78	36	78
Cheshunt GPs:
Herts:	11	16	2	0	0	0	0	4	11	36	19	21
Herts:
Bowyers Water	4	6	0	0	0	0	0	4	5	0	7	5
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
North Met Pit	2	6	0	0	0	0	0	0	4	36	0	14
Slipe Lane Pits	5	0	0	0	0	0	0	0	0	0	0	0
Ashley Pit	0	4	2	0	0	0	0	0	2	0	12	2
ex-Herts:	67	27	54	0	0	0	8	0	3	4	17	56
ex-Herts:
Friday Lake	27	3	0	0	0	0	0	0	0	0	0	0
Hooks Marsh GP	6	2	21	0	0	0	0	0	3	2	4	20
Met Police Pit	19	11	0	0	0	0	0	0	0	0	8	0
Seventy Acres Lake	15	11	33	0	nc	0	8	0	0	2	5	36
Essex:	2	36	31	1	2	0	0	0	0	38	0	1
Essex:
Hall Marsh Scrape	0	22	15	1	2	0	0	0	0	0	0	1
Holyfield Marsh Lake	2	14	16	nc	nc	nc	nc	0	nc	38	nc	nc
Radwell Mill	0	0	0	0	0	nc	0	0	2	0	0	0
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	8	0	8	2	nc	nc	nc	nc	0	nc	20	18
Fairlands Valley Park	0	0	0	0	0	0	0	0	0	0	0	0
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	0	0	0	0	2	0	0	0	0	0	0
Tyttenhanger GPs - all	19	10	21	0	0	0	nc	0	33	10	nc	13
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	2	0	0
Hilfield Park Reservoir	81	114	38	29	2	0	0	2	6	36	20	62
Tring Reservoirs	21	62	nc	2	2	2	4	31	nc	74	45	14

PochardTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	84	74	50	16	22	3	17	16	136	142	142	174
Colne Valley:
Hampermill Lake	nc	nc	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	4	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	81	31	34	5	7	1	15	16	134	142	129	156
Maple Lodge NR	3	6	10	nc	7	nc	2	0	0	0	2	nc
Lynsters Lake	nc	nc	5	nc	0	0	0	0	2	nc	8	8
Pynesfield North/South Lakes	0	8	1	0	0	nc	0	0	0	0	3	10
Helicon Lake	0	0	0	0	0	0	0	0	0	0	0	0
Troy Mill Lake	0	25	0	11	8	2	0	0	0	0	0	0
Lea Valley:	159	150	102	35	41	29	29	34	72	108	126	102
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	0	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
King's Meads	1	nc	nc	0	nc	0	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	52	18	27	nc	9	nc	0	4	11	18	nc	5
Amwell NR - others	9	7	7	5	14	5	12	26	31	28	29	20
Stanstead Innings	37	18	16	23	16	8	6	2	23	25	39	27
Rye Meads	2	23	15	nc	nc	nc	nc	nc	1	3	2	2
Broxbourne GP	6	7	8	0	0	0	0	0	3	7	30	14
Cheshunt GPs:	52	77	29	7	2	16	11	2	3	27	26	34
Cheshunt GPs:
Herts:	29	19	8	2	0	1	0	0	2	14	24	17
Herts:
Bowyers Water	24	18	6	2	0	1	0	0	2	14	24	13
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
North Met Pit	0	1	1	0	0	0	0	0	0	0	0	2
Slipe Lane Pits	5	0	0	0	0	0	0	0	0	0	0	2
Ashley Pit	0	0	1	0	0	0	0	0	0	0	0	0
ex-Herts:	11	30	15	5	2	15	11	1	1	1	2	17
ex-Herts:
Friday Lake	2	1	1	0	0	0	0	0	0	1	0	0
Hooks Marsh GP	0	2	1	0	2	0	0	1	0	0	0	0
Met Police Pit	5	0	6	0	0	0	0	0	0	0	0	0
Seventy Acres Lake	4	27	7	5	nc	15	11	0	1	0	2	17
Essex:	12	28	6	0	0	0	0	1	0	12	0	0
Essex:
Hall Marsh Scrape	0	0	0	0	0	0	0	0	0	0	0	0
Holyfield Marsh Lake	12	28	6	nc	nc	nc	nc	1	nc	12	nc	nc
Radwell Mill	0	0	0	0	0	nc	0	0	0	0	0	0
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	10	5	0	0	nc	nc	nc	nc	36	nc	0	11
Fairlands Valley Park	0	0	0	0	0	0	2	0	0	0	0	0
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	0	1	0	0	1	0	0	0	0	1	0
Tyttenhanger GPs - all	1	5	5	1	6	1	nc	0	1	0	nc	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Hilfield Park Reservoir	18	14	24	0	0	24	135	74	51	24	21	15
Tring Reservoirs	147	227	nc	4	0	3	21	69	nc	315	376	297

Tufted DuckTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	116	249	213	111	90	24	44	59	60	66	164	370
Colne Valley:
Hampermill Lake	nc	nc	4	2	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	6	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	42	93	52	46	9	19	11	30	28	49	94	162
Maple Lodge NR	13	19	15	nc	10	nc	6	22	11	2	13	nc
Lynsters Lake	nc	nc	35	nc	0	0	2	0	12	nc	10	17
Pynesfield North/South Lakes	47	49	24	13	24	nc	0	0	4	10	43	91
Helicon Lake	6	20	0	3	1	0	0	0	0	1	0	8
Troy Mill Lake	8	62	83	47	46	5	25	7	5	4	4	92
Lea Valley:	463	635	416	316	172	141	179	298	208	415	399	345
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	0	1	0	0	10	9	7	1	0	1	0	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	3	5
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
King's Meads	0	nc	nc	12	nc	5	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	41	27	46	nc	27	nc	5	18	31	23	nc	14
Amwell NR - others	98	101	37	48	24	15	27	70	41	74	144	78
Stanstead Innings	72	91	59	37	49	40	44	34	57	63	70	62
Rye Meads	27	59	42	nc	nc	nc	nc	nc	31	37	56	36
Broxbourne GP	83	101	46	65	0	2	72	76	10	36	23	31
Cheshunt GPs:	142	255	186	154	62	70	24	99	38	181	103	119
Cheshunt GPs:
Herts:	45	76	75	69	48	33	5	7	24	51	29	58
Herts:
Bowyers Water	20	23	27	15	6	17	2	6	12	7	12	5
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
North Met Pit	13	29	15	25	14	5	3	1	4	28	11	25
Slipe Lane Pits	4	13	11	23	10	10	0	0	0	3	1	21
Ashley Pit	8	11	22	6	18	1	0	0	8	13	5	7
ex-Herts:	61	111	69	81	13	36	19	35	14	14	74	53
ex-Herts:
Friday Lake	9	17	5	4	6	0	0	0	0	6	0	2
Hooks Marsh GP	17	28	23	12	4	6	8	8	0	0	10	14
Met Police Pit	8	9	13	36	3	0	0	1	0	0	36	8
Seventy Acres Lake	27	57	28	29	nc	30	11	26	14	8	28	29
Essex:	36	68	42	4	1	1	0	57	0	116	0	8
Essex:
Hall Marsh Scrape	0	0	0	4	1	1	0	0	0	8	0	8
Holyfield Marsh Lake	36	68	42	nc	nc	nc	nc	57	nc	108	nc	nc
Radwell Mill	0	2	2	2	8	nc	0	0	0	0	0	0
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	3
Panshanger Park	57	61	40	65	nc	nc	nc	nc	26	nc	34	62
Fairlands Valley Park	0	0	0	0	0	0	2	0	2	2	0	1
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	2	5	6	2	4	0	0	0	0	0	0
Tyttenhanger GPs - all	12	23	5	9	9	7	nc	0	0	11	nc	8
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Hilfield Park Reservoir	87	131	81	149	8	26	209	246	56	75	126	85
Tring Reservoirs	339	327	nc	249	45	48	116	252	nc	198	264	378

GoldeneyeTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	2	3	2	0	0	0	0	0	0	0	3	6
Colne Valley:
Hampermill Lake	nc	nc	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	2	0	2	0	0	0	0	0	0	0	3	6
Maple Lodge NR	0	0	0	nc	0	nc	0	0	0	0	0	nc
Lynsters Lake	nc	nc	0	nc	0	0	0	0	0	nc	0	0
Pynesfield North/South Lakes	0	0	0	0	0	nc	0	0	0	0	0	0
Helicon Lake	0	0	0	0	0	0	0	0	0	0	0	0
Troy Mill Lake	0	3	0	0	0	0	0	0	0	0	0	0
Lea Valley:	2	10	4	0	0	0	0	0	0	2	0	1
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	0	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
King's Meads	0	nc	nc	0	nc	0	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	0	0	2	nc	0	nc	0	0	0	0	nc	0
Amwell NR - others	2	5	1	0	0	0	0	0	0	0	0	1
Stanstead Innings	0	0	0	0	0	0	0	0	0	0	0	0
Rye Meads	0	0	0	nc	nc	nc	nc	nc	0	0	0	0
Broxbourne GP	0	0	0	0	0	0	0	0	0	0	0	0
Cheshunt GPs:	0	5	1	0	0	0	0	0	0	2	0	0
Cheshunt GPs:
Herts:	0	0	1	0	0	0	0	0	0	2	0	0
Herts:
Bowyers Water	0	0	0	0	0	0	0	0	0	2	0	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
North Met Pit	0	0	0	0	0	0	0	0	0	0	0	0
Slipe Lane Pits	0	0	0	0	0	0	0	0	0	0	0	0
Ashley Pit	0	0	1	0	0	0	0	0	0	0	0	0
ex-Herts:	0	2	0	0	0	0	0	0	0	0	0	0
ex-Herts:
Friday Lake	0	0	0	0	0	0	0	0	0	0	0	0
Hooks Marsh GP	0	0	0	0	0	0	0	0	0	0	0	0
Met Police Pit	0	0	0	0	0	0	0	0	0	0	0	0
Seventy Acres Lake	0	2	0	0	nc	0	0	0	0	0	0	0
Essex:	0	3	0	0	0	0	0	0	0	0	0	0
Essex:
Hall Marsh Scrape	0	0	0	0	0	0	0	0	0	0	0	0
Holyfield Marsh Lake	0	3	0	nc	nc	nc	nc	0	nc	0	nc	nc
Radwell Mill	0	0	0	0	0	nc	0	0	0	0	0	0
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	0	0	0	0	nc	nc	nc	nc	0	nc	0	0
Fairlands Valley Park	0	0	0	0	0	0	0	0	0	0	0	0
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	0	0	0	0	0	0	0	0	0	0	0
Tyttenhanger GPs - all	0	0	0	0	0	0	nc	0	0	0	nc	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Hilfield Park Reservoir	2	1	2	1	0	0	0	0	0	0	0	1
Tring Reservoirs	10	9	nc	1	0	0	0	0	nc	0	4	6

Little GrebeTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	6	9	5	0	1	0	8	10	9	10	6	0
Colne Valley:
Hampermill Lake	nc	nc	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	0	0	0	0	0	0	0	0	0	0	0	0
Maple Lodge NR	6	9	5	nc	1	nc	8	10	9	9	5	nc
Lynsters Lake	nc	nc	0	nc	0	0	0	0	0	nc	0	0
Pynesfield North/South Lakes	0	0	0	0	0	nc	0	0	0	0	0	0
Helicon Lake	0	0	0	0	0	0	0	0	0	0	0	0
Troy Mill Lake	0	0	0	0	0	0	0	0	0	1	1	0
Lea Valley:	16	14	14	3	4	3	4	4	25	25	32	26
Lea Valley:
East Hyde	1	0	1	2	1	2	2	2	2	0	2	3
Brocket Park	1	0	0	0	0	0	0	0	1	0	1	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	1	0
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0
King's Meads	1	nc	nc	0	nc	1	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	0	0	0	nc	0	nc	1	0	0	0	nc	1
Amwell NR - others	6	0	0	0	0	0	0	2	3	2	3	2
Stanstead Innings	0	1	1	0	0	0	0	0	1	0	0	0
Rye Meads	2	8	11	nc	nc	nc	nc	nc	16	18	19	12
Broxbourne GP	2	0	0	0	0	0	0	0	0	2	4	6
Cheshunt GPs:	3	5	1	1	3	0	1	0	2	3	2	2
Cheshunt GPs:
Herts:	0	4	1	1	2	0	0	0	2	1	2	0
Herts:
Bowyers Water	0	0	0	0	0	0	0	0	2	1	0	0
Cheshunt Lake	0	1	0	0	0	0	0	0	0	0	0	0
North Met Pit	0	2	1	0	1	0	0	0	0	0	0	0
Slipe Lane Pits	0	0	0	0	0	0	0	0	0	0	0	0
Ashley Pit	0	1	0	1	1	0	0	0	0	0	2	0
ex-Herts:	3	1	0	0	0	0	1	0	0	1	0	2
ex-Herts:
Friday Lake	0	0	0	0	0	0	0	0	0	0	0	0
Hooks Marsh GP	0	0	0	0	0	0	0	0	0	0	0	0
Met Police Pit	0	0	0	0	0	0	0	0	0	0	0	0
Seventy Acres Lake	3	1	0	0	nc	0	1	0	0	1	0	2
Essex:	0	0	0	0	1	0	0	0	0	1	0	0
Essex:
Hall Marsh Scrape	0	0	0	0	1	0	0	0	0	0	0	0
Holyfield Marsh Lake	0	0	0	nc	nc	nc	nc	0	nc	1	nc	nc
Radwell Mill	4	0	0	0	0	nc	0	1	0	1	0	1
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	2
Panshanger Park	22	23	14	7	nc	nc	nc	nc	37	nc	29	31
Fairlands Valley Park	1	2	0	2	1	0	0	1	1	0	2	0
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	1
Verulamium Park	0	0	0	0	0	0	0	0	0	0	0	0
Tyttenhanger GPs - all	0	0	0	0	0	0	nc	0	0	0	nc	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Hilfield Park Reservoir	9	6	1	1	2	2	0	4	8	4	6	5
Tring Reservoirs	1	0	nc	2	1	2	4	8	nc	14	7	12

Great Crested GrebeTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	28	23	41	36	34	20	28	37	37	32	49	55
Colne Valley:
Hampermill Lake	nc	nc	15	11	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	8	5	5	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	18	10	5	10	14	13	16	21	18	18	25	23
Maple Lodge NR	0	0	0	nc	2	nc	0	0	0	0	0	nc
Lynsters Lake	nc	nc	5	nc	2	5	1	4	2	nc	13	13
Pynesfield North/South Lakes	8	3	6	6	7	nc	8	9	8	7	5	6
Helicon Lake	2	1	0	0	0	0	0	0	2	4	1	1
Troy Mill Lake	0	1	5	4	9	2	3	3	7	3	5	12
Lea Valley:	72	88	86	53	57	45	86	104	89	108	61	50
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	0	1	1	1	1	2	1	0	1	1	0	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	1	0
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	7	2
King's Meads	0	nc	nc	0	nc	2	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	3	7	4	nc	3	nc	13	11	14	4	nc	0
Amwell NR - others	6	10	6	7	10	5	10	14	11	15	7	12
Stanstead Innings	6	7	11	10	8	9	14	12	7	4	11	6
Rye Meads	0	3	1	nc	nc	nc	nc	nc	2	0	0	0
Broxbourne GP	8	7	6	8	14	10	14	7	10	8	3	7
Cheshunt GPs:	49	53	57	27	21	17	34	60	44	76	32	23
Cheshunt GPs:
Herts:	6	7	9	10	17	8	10	23	18	13	12	3
Herts:
Bowyers Water	2	0	3	5	7	2	5	17	13	6	4	2
Cheshunt Lake	0	0	0	0	0	2	0	0	0	0	0	0
North Met Pit	3	6	6	4	7	2	5	6	2	6	7	0
Slipe Lane Pits	0	0	0	0	0	0	0	0	0	0	0	0
Ashley Pit	1	1	0	1	3	2	0	0	3	1	1	1
ex-Herts:	22	18	30	17	4	9	24	15	26	21	20	20
ex-Herts:
Friday Lake	2	0	7	1	0	0	1	2	3	0	1	0
Hooks Marsh GP	3	7	7	6	4	4	6	6	10	7	5	7
Met Police Pit	2	1	5	1	0	0	3	0	3	1	0	1
Seventy Acres Lake	15	10	11	9	nc	5	14	7	10	13	14	12
Essex:	21	28	18	0	0	0	0	22	0	42	0	0
Essex:
Hall Marsh Scrape	0	0	0	0	0	0	0	0	0	0	0	0
Holyfield Marsh Lake	21	28	18	nc	nc	nc	nc	22	nc	42	nc	nc
Radwell Mill	0	0	0	0	0	nc	0	0	0	0	0	0
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	0	1	3	7	nc	nc	nc	nc	6	nc	0	0
Fairlands Valley Park	6	4	1	2	1	3	0	1	0	3	5	6
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	1	1	0	0	0	0	0	1	1	0	0
Tyttenhanger GPs - all	6	12	13	14	12	9	nc	8	2	16	nc	18
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	5	8	1
Hilfield Park Reservoir	9	11	14	14	20	17	37	47	61	34	16	7
Tring Reservoirs	26	25	nc	22	17	19	25	18	nc	24	17	30

CormorantTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	28	35	39	6	6	4	4	87	7	36	37	75
Colne Valley:
Hampermill Lake	nc	nc	7	3	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	2	4	0	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	20	24	6	3	4	3	3	6	6	31	28	37
Maple Lodge NR	1	0	1	nc	0	nc	1	0	0	3	2	nc
Lynsters Lake	nc	nc	6	nc	0	1	0	1	1	nc	0	5
Pynesfield North/South Lakes	4	3	9	0	0	nc	0	0	0	1	0	4
Helicon Lake	1	0	0	0	0	0	0	0	0	0	0	2
Troy Mill Lake	2	6	6	0	2	0	0	80	0	1	7	27
Lea Valley:	170	195	85	79	62	26	62	62	85	198	148	103
Lea Valley:
East Hyde	2	2	2	4	4	1	3	4	3	2	0	2
Brocket Park	3	4	1	4	1	2	1	2	0	2	1	4
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	16	9
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	2	0
King's Meads	1	nc	nc	0	nc	0	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	8	4	6	nc	0	nc	1	0	0	4	nc	4
Amwell NR - others	27	22	36	43	40	16	42	19	27	16	15	18
Stanstead Innings	18	12	4	5	3	1	1	1	7	7	18	8
Rye Meads	3	3	7	nc	nc	nc	nc	nc	11	7	6	1
Broxbourne GP	12	16	4	5	4	2	3	1	1	9	10	11
Cheshunt GPs:	96	132	25	18	10	4	11	35	36	151	80	46
Cheshunt GPs:
Herts:	13	8	8	9	4	0	7	10	10	16	9	12
Herts:
Bowyers Water	1	1	1	1	0	0	5	9	6	12	4	1
Cheshunt Lake	0	1	0	0	0	0	0	0	0	0	0	1
North Met Pit	3	4	3	4	4	0	1	1	2	4	5	0
Slipe Lane Pits	3	1	2	3	0	0	0	0	0	0	0	6
Ashley Pit	6	1	2	1	0	0	1	0	2	0	0	4
ex-Herts:	37	47	17	6	5	4	3	15	26	19	71	34
ex-Herts:
Friday Lake	8	3	0	0	1	0	0	1	0	1	1	0
Hooks Marsh GP	10	22	5	4	3	1	2	2	8	4	23	9
Met Police Pit	2	0	1	0	1	0	0	4	0	1	14	6
Seventy Acres Lake	17	22	11	2	nc	3	1	8	18	13	33	19
Essex:	46	77	0	3	1	0	1	10	0	116	0	0
Essex:
Hall Marsh Scrape	0	2	0	3	1	0	1	0	0	0	0	0
Holyfield Marsh Lake	46	75	0	nc	nc	nc	nc	10	nc	116	nc	nc
Radwell Mill	2	1	2	0	0	nc	0	1	2	0	0	0
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	24	9	0	5	nc	nc	nc	nc	4	nc	9	4
Fairlands Valley Park	14	2	4	1	1	1	3	3	5	4	11	13
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	2	3	2	0	0	0	1	0	0	0	1	0
Tyttenhanger GPs - all	25	11	4	1	3	1	nc	2	2	9	nc	42
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	15	6	1
Hilfield Park Reservoir	8	10	2	6	2	2	18	0	43	1	24	9
Tring Reservoirs	50	28	nc	35	28	35	14	23	nc	105	86	72

Grey HeronTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	12	24	17	17	19	7	16	7	4	9	8	12
Colne Valley:
Hampermill Lake	nc	nc	1	2	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	1	0	1	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	11	19	16	13	16	5	9	2	2	6	2	4
Maple Lodge NR	0	0	0	nc	2	nc	2	1	1	3	2	nc
Lynsters Lake	nc	nc	0	nc	1	1	2	0	0	nc	1	1
Pynesfield North/South Lakes	0	0	0	0	0	nc	0	1	0	0	0	0
Helicon Lake	1	1	0	0	0	0	1	0	0	0	1	0
Troy Mill Lake	0	3	0	1	0	1	2	3	1	0	2	7
Lea Valley:	41	79	39	32	17	14	19	26	30	23	33	28
Lea Valley:
East Hyde	1	1	3	0	1	1	2	2	1	0	1	1
Brocket Park	1	1	1	2	1	1	2	1	1	0	1	0
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	2	0
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	3	1
King's Meads	0	nc	nc	0	nc	0	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	1	0	0	nc	3	nc	0	1	0	0	nc	0
Amwell NR - others	8	34	22	19	7	2	4	8	3	3	4	5
Stanstead Innings	1	3	2	2	1	2	3	1	1	2	1	0
Rye Meads	3	0	1	nc	nc	nc	nc	nc	4	0	6	1
Broxbourne GP	1	1	0	1	1	1	1	1	0	1	2	2
Cheshunt GPs:	25	39	10	8	3	7	7	12	20	17	13	18
Cheshunt GPs:
Herts:	2	1	1	2	2	4	2	7	8	3	2	1
Herts:
Bowyers Water	0	0	0	0	0	1	1	5	5	2	1	0
Cheshunt Lake	0	0	0	0	0	0	1	0	0	0	0	0
North Met Pit	2	0	0	0	1	0	0	1	2	1	1	0
Slipe Lane Pits	0	0	0	0	0	0	0	0	0	0	0	0
Ashley Pit	0	1	1	2	1	3	0	1	1	0	0	1
ex-Herts:	13	23	7	4	0	3	5	5	11	5	11	12
ex-Herts:
Friday Lake	1	2	1	0	0	0	1	0	0	0	0	0
Hooks Marsh GP	4	10	2	1	0	2	2	2	4	0	2	4
Met Police Pit	1	0	0	0	0	0	0	0	2	1	3	4
Seventy Acres Lake	7	11	4	3	nc	1	2	3	5	4	6	4
Essex:	10	15	2	2	1	0	0	0	1	9	0	5
Essex:
Hall Marsh Scrape	1	1	2	2	1	0	0	0	1	2	0	5
Holyfield Marsh Lake	9	14	0	nc	nc	nc	nc	0	nc	7	nc	nc
Radwell Mill	0	0	0	0	0	nc	0	0	0	1	1	0
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Panshanger Park	1	1	0	0	nc	nc	nc	nc	2	nc	0	1
Fairlands Valley Park	1	2	0	0	0	1	0	1	1	1	2	1
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	2	3	2	2	1	0	1	0	1	1	0
Tyttenhanger GPs - all	8	11	10	5	4	1	nc	5	2	3	nc	8
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	1	4	1
Hilfield Park Reservoir	1	2	1	0	1	0	3	6	3	2	1	4
Tring Reservoirs	4	14	nc	9	8	8	4	8	nc	6	8	12

MoorhenTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	37	32	39	13	14	6	13	21	53	21	31	15
Colne Valley:
Hampermill Lake	nc	nc	4	3	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	7	5	2	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	8	2	12	3	4	2	6	14	10	6	17	9
Maple Lodge NR	22	16	10	nc	9	nc	2	6	29	7	13	nc
Lynsters Lake	nc	nc	1	nc	0	1	0	1	0	nc	0	0
Pynesfield North/South Lakes	4	0	2	0	0	nc	1	0	2	1	0	1
Helicon Lake	0	2	1	2	0	1	1	0	1	1	1	2
Troy Mill Lake	3	5	4	3	1	2	3	0	11	6	0	3
Lea Valley:	157	129	128	48	39	52	49	60	142	128	118	173
Lea Valley:
East Hyde	44	30	17	11	16	16	6	8	7	11	6	53
Brocket Park	20	14	18	1	0	0	3	6	7	10	16	13
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	6	5
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	4	0
King's Meads	9	nc	nc	0	nc	0	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	5	2	2	nc	2	nc	2	4	3	3	nc	4
Amwell NR - others	10	6	9	4	3	5	7	13	12	9	10	12
Stanstead Innings	4	4	2	7	2	5	3	11	12	8	10	5
Rye Meads	25	34	27	nc	nc	nc	nc	nc	60	23	32	36
Broxbourne GP	3	1	3	3	4	1	2	2	7	10	6	3
Cheshunt GPs:	37	38	50	22	12	25	26	16	34	54	28	42
Cheshunt GPs:
Herts:	14	23	24	13	9	14	12	8	15	23	9	16
Herts:
Bowyers Water	9	5	2	2	3	1	0	0	4	0	1	5
Cheshunt Lake	1	2	4	3	1	7	4	1	1	3	2	1
North Met Pit	2	7	10	3	3	5	5	2	4	9	2	5
Slipe Lane Pits	2	1	4	0	1	0	0	1	2	2	1	0
Ashley Pit	0	8	4	5	1	1	3	4	4	9	3	5
ex-Herts:	17	13	20	7	1	11	14	8	19	18	17	20
ex-Herts:
Friday Lake	0	0	1	0	0	2	1	0	3	0	0	0
Hooks Marsh GP	5	1	2	1	0	4	4	1	4	5	3	2
Met Police Pit	0	2	3	0	1	1	3	3	4	2	1	1
Seventy Acres Lake	12	10	14	6	nc	4	6	4	8	11	13	17
Essex:	6	2	6	2	2	0	0	0	0	13	2	6
Essex:
Hall Marsh Scrape	6	2	6	2	2	0	0	0	0	4	2	6
Holyfield Marsh Lake	0	0	0	nc	nc	nc	nc	0	nc	9	nc	nc
Radwell Mill	3	3	1	2	8	nc	1	5	4	4	4	2
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	3
Panshanger Park	2	14	3	5	nc	nc	nc	nc	17	nc	24	17
Fairlands Valley Park	22	23	18	10	12	12	3	7	11	19	22	24
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	2
Verulamium Park	11	11	12	16	3	3	4	11	13	13	11	27
Tyttenhanger GPs - all	16	11	13	4	1	0	nc	3	19	18	nc	21
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	7	8	1
Hilfield Park Reservoir	3	3	2	1	1	1	2	1	3	2	1	0
Tring Reservoirs	5	5	nc	2	0	5	8	24	nc	22	29	21

CootTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	489	339	253	120	127	110	307	571	870	774	782	808
Colne Valley:
Hampermill Lake	nc	nc	10	7	nc	nc	nc	nc	nc	nc	nc	nc
Batchworth Lake	nc	33	24	20	nc	nc	nc	nc	nc	nc	nc	nc
Stocker's and Bury Lakes	195	75	53	33	38	51	53	176	272	295	272	203
Maple Lodge NR	31	20	44	nc	19	nc	44	56	83	47	45	nc
Lynsters Lake	nc	nc	29	nc	14	14	8	13	67	nc	46	87
Pynesfield North/South Lakes	152	140	63	20	22	nc	37	53	84	62	102	139
Helicon Lake	80	65	13	11	6	8	5	7	16	18	29	48
Troy Mill Lake	31	6	17	29	28	37	160	266	348	352	288	331
Lea Valley:	1107	953	683	365	222	298	527	868	987	1700	1102	1102
Lea Valley:
East Hyde	10	12	14	10	10	11	6	6	8	11	11	16
Brocket Park	30	26	19	10	7	11	12	10	23	29	30	31
Stanborough Lakes North	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	35	42
Stanborough Lakes South	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	12	15
King's Meads	35	nc	nc	0	nc	4	nc	nc	nc	nc	nc	nc
Amwell GP - Ware / Thrift GP	22	6	17	nc	9	nc	24	20	21	15	nc	12
Amwell NR - others	259	155	73	28	24	54	174	249	306	355	364	431
Stanstead Innings	142	95	55	36	36	40	64	61	111	129	113	91
Rye Meads	97	120	90	nc	nc	nc	nc	nc	291	283	213	173
Broxbourne GP	202	169	124	98	46	49	64	85	49	98	114	131
Cheshunt GPs:	310	370	291	183	90	129	183	437	178	780	210	160
Cheshunt GPs:
Herts:	157	199	133	107	73	41	58	89	107	115	131	104
Herts:
Bowyers Water	25	58	42	29	32	11	24	44	39	54	67	13
Cheshunt Lake	12	6	3	5	5	5	5	3	2	2	1	6
North Met Pit	5	24	27	14	22	12	14	8	7	13	11	13
Slipe Lane Pits	26	9	11	2	2	2	3	13	24	21	15	34
Ashley Pit	89	102	50	57	12	11	12	21	35	25	37	38
ex-Herts:	93	99	91	67	15	85	123	143	68	74	78	54
ex-Herts:
Friday Lake	0	1	6	0	3	2	3	2	3	5	6	2
Hooks Marsh GP	48	38	23	15	8	18	19	12	12	19	15	19
Met Police Pit	0	2	5	8	4	4	3	7	8	3	3	4
Seventy Acres Lake	45	58	57	44	nc	61	98	122	45	47	54	29
Essex:	60	72	67	9	2	3	2	205	3	591	1	2
Essex:
Hall Marsh Scrape	2	10	9	9	2	3	2	2	3	3	1	2
Holyfield Marsh Lake	58	62	58	nc	nc	nc	nc	203	nc	588	nc	nc
Radwell Mill	0	0	2	2	3	nc	2	0	0	0	0	1
Digswell Lake	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	5
Panshanger Park	130	128	92	60	nc	nc	nc	nc	60	nc	176	207
Fairlands Valley Park	24	20	20	16	12	15	18	24	19	19	15	18
Hatfield Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	4
Verulamium Park	21	25	10	14	15	36	30	36	31	26	26	20
Tyttenhanger GPs - all	70	68	45	32	33	24	nc	17	23	38	nc	37
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	2	3	1
Hilfield Park Reservoir	117	64	29	34	28	58	208	222	99	65	44	51
Tring Reservoirs	307	187	nc	64	54	111	455	598	nc	279	311	292