Herts Bird Club - WeBS 2014

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

In 2014 the Hertfordshire counts were organised by Cath Patrick and Dawn Richardson (Lee Valley from Ware GP south) and Jim Terry (all other sites), and undertaken by dedicated observers each month. Some sites are not counted during the summer months (April to August) but otherwise coverage is very good.

The Sunday count dates in 2014 were; 19 Jan, 16 Feb, 16 Mar, 20 Apr, 18 May, 15 Jun, 13 Jul, 10 Aug, 7 Sep, 12 Oct, 9 Nov, and 7 Dec. With agreement from the scheme organisers, the Lee Valley counts continue to be undertaken on the previous Saturday.

Thanks are due to everyone who contributes to this important monitoring scheme, and to Jim Terry, and Cath Patrick for their co-ordination.

We are always looking for new volunteers to help with this national monitoring effort, not only to fill existing gaps in coverage, but also to take on other sites, that may hold significant numbers of wetland birds. The effort involves counting all water-birds at one wetland site once a month on the designated Saturday or Sunday – ideally throughout the year, but most importantly from January to March and September to December. Please contact Jim Terry (46 Manor Way, Borehamwood, Herts WD6 1QY) or Cath Patrick (c/o LVRP, Myddleton House, Bull’s Cross, Enfield, EN2 9HG) if you can help.

Mute Swan
Canada Goose
Wigeon
Gadwall
Teal
Mallard
Shoveler
Pochard
Tufted Duck
Goldeneye
Ruddy Duck
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:	48	69	55	52	38	31	46	60	74	71	88	78
Batchworth Lake	5	6	3	3	2	3	2	2	2	2	0	4
Stocker's and Bury Lakes	39	39	30	39	29	21	38	46	55	34	45	34
Maple Lodge NR	2	2	0	1	1	4	2	2	2	1	1	0
Lynsters Lake	nc	18	22	8	2	1	nc	3	9	11	18	20
Pynesfield North/South Lakes	2	4	0	0	2	0	nc	3	3	3	3	3
Helicon Lake	0	0	0	0	0	0	2	0	0	0	3	0
Troy Mill Lake	0	0	0	1	2	2	2	4	3	20	18	17
Lea Valley:	84	151	118	100	83	33	25	85	108	120	118	119
Lea Valley:
East Hyde	2	2	2	2	2	2	4	6	4	2	0	4
Brocket Park	nc	1	3	1	1	0	1	2	2	2	2	2
Stanborough Lakes North	9	13	6	5	nc	nc	nc	nc	nc	nc	9	9
Stanborough Lakes South	0	1	2	7	nc	nc	nc	nc	nc	nc	3	0
King's Meads	5	10	15	10	14	2	3	3	3	3	6	nc
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Amwell NR - others	3	0	1	3	5	4	7	5	9	15	8	22
Stanstead Abbotts Lakes - N lake	9	9	4	nc	nc	nc	nc	nc	2	2	2	3
Rye Meads	7	8	7	nc	nc	nc	nc	nc	17	17	12	16
Cheshunt GPs:	49	107	78	72	61	25	10	69	71	79	76	63
Cheshunt GPs:
Herts:	32	16	12	11	7	3	7	13	11	21	28	28
Herts:
Bowyers Water	18	4	2	2	nc	2	3	4	3	13	17	15
Cheshunt Lake	4	3	0	2	3	0	2	3	4	2	5	3
Northmet Lake	6	2	6	2	2	1	0	4	2	3	2	5
Slipe Lane Lake	2	4	2	3	0	0	1	2	1	3	3	3
Turnford Lakes	2	3	2	2	2	0	1	0	1	0	1	2
ex-Herts:	6	72	64	58	52	22	3	56	40	42	32	29
ex-Herts:
Friday Lake	3	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	2	2	5	3	1	0	3	1	2	9	3	11
Met Police Pit	1	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	70	59	55	51	22	nc	55	38	33	29	18
Essex:	11	19	2	3	2	0	0	0	20	16	16	6
Essex:
Hall Marsh Scrape	3	4	2	3	2	0	0	0	1	nc	0	0
Holyfield Marsh Lake	8	15	0	nc	nc	nc	nc	nc	19	16	16	6
Radwell Mill	3	8	7	8	6	6	nc	10	9	10	7	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	12	3	4
Fairlands Valley Park	3	3	1	nc	nc	nc	nc	nc	nc	nc	nc	4
Verulamium Park	11	17	13	15	11	7	8	6	8	14	13	13
Tyttenhanger GPs - all	2	1	2	4	5	4	8	4	1	4	2	11
Aldenham Reservoir	21	5	nc	4	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	6	nc	3	3	3	4	4	11	8	8	0	0
Tring Reservoirs	21	0	10	17	15	38	53	57	60	67	42	nc

Canada GooseTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	51	145	113	92	72	183	147	129	8	45	22	212
Batchworth Lake	16	17	31	23	15	37	16	20	1	0	4	16
Stocker's and Bury Lakes	35	55	39	48	37	130	122	107	7	6	13	164
Maple Lodge NR	0	0	4	6	0	0	0	0	0	0	0	0
Lynsters Lake	nc	73	37	12	11	0	nc	2	0	14	4	32
Pynesfield North/South Lakes	0	0	0	0	0	0	nc	0	0	0	0	0
Helicon Lake	0	0	1	3	8	0	6	0	0	24	0	0
Troy Mill Lake	0	0	1	0	1	16	3	0	0	1	1	0
Lea Valley:	268	323	452	206	172	394	333	392	712	254	371	388
Lea Valley:
East Hyde	56	30	33	18	20	20	22	183	110	85	120	98
Brocket Park	nc	4	5	2	2	0	0	16	19	55	55	69
Stanborough Lakes North	22	28	72	30	nc	nc	nc	nc	nc	nc	5	7
Stanborough Lakes South	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
King's Meads	32	0	6	2	2	2	5	0	0	39	0	nc
Amwell GP - Ware / Thrift GP	0	4	1	14	nc	nc	nc	nc	nc	nc	0	0
Amwell NR - others	38	81	90	55	71	121	117	47	120	30	82	40
Stanstead Abbotts Lakes - N lake	4	20	49	nc	nc	nc	nc	nc	12	7	6	2
Rye Meads	21	2	8	nc	nc	nc	nc	nc	4	0	0	1
Cheshunt GPs:	95	154	188	85	77	251	189	146	447	38	103	171
Cheshunt GPs:
Herts:	13	31	47	42	10	156	132	44	54	7	68	27
Herts:
Bowyers Water	10	6	14	11	nc	62	71	20	26	1	27	0
Cheshunt Lake	3	4	2	3	0	23	6	5	3	0	10	2
Northmet Lake	0	9	21	18	7	71	55	6	16	6	17	18
Slipe Lane Lake	0	2	4	3	1	0	0	7	6	0	1	0
Turnford Lakes	0	10	6	7	2	0	0	6	3	0	13	7
ex-Herts:	14	41	85	41	52	95	54	89	133	1	8	19
ex-Herts:
Friday Lake	4	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	7	4	18	11	11	55	54	28	44	0	4	2
Met Police Pit	3	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	37	67	30	41	40	nc	61	89	1	4	17
Essex:	68	82	56	2	15	0	3	13	260	30	27	125
Essex:
Hall Marsh Scrape	10	4	11	2	15	0	3	13	0	nc	17	0
Holyfield Marsh Lake	58	78	45	nc	nc	nc	nc	nc	260	30	10	125
Radwell Mill	2	6	1	5	11	0	nc	0	0	4	0	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	2
Fairlands Valley Park	37	47	38	nc	nc	nc	nc	nc	nc	nc	nc	57
Verulamium Park	60	51	55	28	31	76	78	100	66	142	153	59
Tyttenhanger GPs - all	3	5	76	10	7	19	35	15	268	52	38	0
Aldenham Reservoir	81	50	nc	32	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	0	nc	0	5	2	120	132	130	0	0	0	0
Tring Reservoirs	25	40	60	11	20	53	51	287	27	1	29	nc

WigeonTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	97	28	0	0	0	0	0	0	9	27	53	14
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	0
Stocker's and Bury Lakes	90	24	0	0	0	0	0	0	1	15	18	10
Maple Lodge NR	0	0	0	0	0	0	0	0	0	0	0	0
Lynsters Lake	nc	0	0	0	0	0	nc	0	0	0	0	0
Pynesfield North/South Lakes	7	4	0	0	0	0	nc	0	0	1	4	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	8	11	31	4
Lea Valley:	169	94	36	1	1	1	1	1	28	94	184	21
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	nc	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
King's Meads	38	27	10	0	0	0	0	0	0	0	1	nc
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Amwell NR - others	15	1	0	1	1	1	1	0	8	24	14	5
Stanstead Abbotts Lakes - N lake	0	0	0	nc	nc	nc	nc	nc	0	1	5	0
Rye Meads	2	0	4	nc	nc	nc	nc	nc	2	28	7	1
Cheshunt GPs:	114	66	22	0	0	0	0	1	18	41	157	15
Cheshunt GPs:
Herts:	58	0	4	0	0	0	0	1	13	31	36	10
Herts:
Bowyers Water	58	0	4	0	nc	0	0	1	13	31	36	10
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	0	0	0	0	0	0	0	0	0	0	0	0
Slipe Lane Lake	0	0	0	0	0	0	0	0	0	0	0	0
Turnford Lakes	0	0	0	0	0	0	0	0	0	0	0	0
ex-Herts:	0	0	0	0	0	0	0	0	5	3	0	0
ex-Herts:
Friday Lake	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	0	0	0	0	0	5	3	0	0
Met Police Pit	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	0	0	0	0	0	nc	0	0	0	0	0
Essex:	56	66	18	0	0	0	0	0	0	7	121	5
Essex:
Hall Marsh Scrape	18	23	13	0	0	0	0	0	0	nc	11	0
Holyfield Marsh Lake	38	43	5	nc	nc	nc	nc	nc	0	7	110	5
Radwell Mill	0	0	0	0	0	0	nc	0	0	0	0	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	61	11	0
Fairlands Valley Park	0	0	0	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	2	0	5	0	0	0	0	0	1	0	0	2
Aldenham Reservoir	15	0	nc	0	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	120	nc	0	0	0	0	1	0	39	156	121	100
Tring Reservoirs	375	507	55	0	1	1	1	0	19	284	243	nc

GadwallTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	160	56	35	14	1	21	92	128	30	78	133	144
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	0
Stocker's and Bury Lakes	143	51	13	6	1	0	9	43	12	16	43	93
Maple Lodge NR	7	3	11	3	0	12	76	35	13	0	2	0
Lynsters Lake	nc	2	10	1	0	0	nc	0	0	2	0	7
Pynesfield North/South Lakes	4	0	0	0	0	0	nc	0	0	4	29	33
Helicon Lake	6	0	0	0	0	0	0	0	0	0	6	0
Troy Mill Lake	0	0	1	4	0	9	7	50	5	56	53	11
Lea Valley:	635	429	266	67	38	112	55	130	464	602	585	395
Lea Valley:
East Hyde	8	0	0	6	0	0	0	0	0	0	0	0
Brocket Park	nc	0	0	0	2	0	0	0	0	2	0	0
Stanborough Lakes North	0	3	3	2	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
King's Meads	38	44	48	28	11	30	4	26	14	35	20	nc
Amwell GP - Ware / Thrift GP	0	5	0	0	nc	nc	nc	nc	nc	nc	0	0
Amwell NR - others	164	50	8	11	17	8	7	36	29	118	101	55
Stanstead Abbotts Lakes - N lake	70	33	7	nc	nc	nc	nc	nc	31	23	52	132
Rye Meads	164	238	176	nc	nc	nc	nc	nc	347	370	293	109
Cheshunt GPs:	191	56	24	20	8	74	44	68	43	54	119	99
Cheshunt GPs:
Herts:	79	10	0	4	3	0	0	5	16	20	57	65
Herts:
Bowyers Water	67	7	0	2	nc	0	0	4	9	14	47	49
Cheshunt Lake	2	1	0	0	0	0	0	0	0	0	0	6
Northmet Lake	6	0	0	2	2	0	0	1	7	6	9	2
Slipe Lane Lake	2	0	0	0	0	0	0	0	0	0	0	2
Turnford Lakes	2	2	0	0	1	0	0	0	0	0	1	6
ex-Herts:	52	12	8	12	3	49	44	63	21	18	0	2
ex-Herts:
Friday Lake	33	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	1	2	4	0	22	44	7	7	14	0	2
Met Police Pit	19	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	11	6	8	3	27	nc	56	14	4	0	0
Essex:	60	34	16	4	2	25	0	0	6	16	62	32
Essex:
Hall Marsh Scrape	20	2	12	4	2	25	0	0	2	nc	38	0
Holyfield Marsh Lake	40	32	4	nc	nc	nc	nc	nc	4	16	24	32
Radwell Mill	10	14	24	0	0	0	nc	6	4	7	14	2
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	36	43	230
Fairlands Valley Park	0	0	0	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	2	10	2	6	2	5	24	10	2	2	6	6
Aldenham Reservoir	115	13	nc	9	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	61	nc	6	14	6	33	126	17	27	40	34	19
Tring Reservoirs	99	65	12	10	3	13	32	40	47	49	46	nc

TealTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	15	1	3	0	0	0	1	1	4	12	8	10
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	0
Stocker's and Bury Lakes	0	0	0	0	0	0	0	0	0	0	0	0
Maple Lodge NR	15	1	3	0	0	0	1	1	4	12	8	10
Lynsters Lake	nc	0	0	0	0	0	nc	0	0	0	0	0
Pynesfield North/South Lakes	0	0	0	0	0	0	nc	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:	204	133	210	10	2	0	3	10	86	173	197	233
Lea Valley:
East Hyde	0	0	0	3	0	0	0	0	0	0	0	0
Brocket Park	nc	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
King's Meads	28	15	18	0	0	0	0	3	12	59	23	nc
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Amwell NR - others	8	5	1	7	2	0	3	1	2	11	5	0
Stanstead Abbotts Lakes - N lake	3	0	2	nc	nc	nc	nc	nc	0	0	3	2
Rye Meads	143	91	174	nc	nc	nc	nc	nc	65	96	148	215
Cheshunt GPs:	22	22	15	0	0	0	0	6	7	7	18	16
Cheshunt GPs:
Herts:	0	3	0	0	0	0	0	0	0	0	0	1
Herts:
Bowyers Water	0	3	0	0	nc	0	0	0	0	0	0	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	0	0	0	0	0	0	0	0	0	0	0	0
Slipe Lane Lake	0	0	0	0	0	0	0	0	0	0	0	0
Turnford Lakes	0	0	0	0	0	0	0	0	0	0	0	1
ex-Herts:	0	0	0	0	0	0	0	0	0	0	1	1
ex-Herts:
Friday Lake	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	0	0	0	0	0	0	0	0	0
Met Police Pit	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	0	0	0	0	0	nc	0	0	0	1	1
Essex:	22	19	15	0	0	0	0	6	7	7	17	14
Essex:
Hall Marsh Scrape	0	7	9	0	0	0	0	6	5	nc	4	0
Holyfield Marsh Lake	22	12	6	nc	nc	nc	nc	nc	2	7	13	14
Radwell Mill	0	0	0	0	0	0	nc	0	0	0	0	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	54	7	28
Fairlands Valley Park	0	0	0	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	14	3	0	0	0	6	14	17	9	7
Aldenham Reservoir	0	0	nc	0	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	0	nc	0	0	0	0	0	0	1	0	0	0
Tring Reservoirs	264	164	95	1	0	0	10	77	325	488	345	nc

MallardTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	100	102	110	77	85	82	107	135	136	108	119	116
Batchworth Lake	24	24	32	13	22	30	54	55	44	29	33	29
Stocker's and Bury Lakes	36	40	39	35	34	15	23	39	63	23	40	57
Maple Lodge NR	21	14	15	8	7	17	9	11	15	14	11	13
Lynsters Lake	nc	6	6	5	4	0	nc	0	6	0	17	8
Pynesfield North/South Lakes	2	1	0	0	5	1	nc	4	2	5	11	4
Helicon Lake	7	7	7	3	9	0	0	19	3	21	2	3
Troy Mill Lake	10	10	11	13	4	19	21	7	3	16	5	2
Lea Valley:	489	365	384	278	152	245	219	371	445	367	465	423
Lea Valley:
East Hyde	41	10	12	8	10	12	11	17	8	5	12	12
Brocket Park	nc	13	10	6	10	29	13	16	10	12	3	13
Stanborough Lakes North	75	67	59	87	nc	nc	nc	nc	nc	nc	68	54
Stanborough Lakes South	22	21	12	14	nc	nc	nc	nc	nc	nc	20	25
King's Meads	52	31	20	19	34	40	23	35	24	29	24	nc
Amwell GP - Ware / Thrift GP	17	9	7	8	nc	nc	nc	nc	nc	nc	3	19
Amwell NR - others	57	34	22	17	18	35	63	31	38	44	53	25
Stanstead Abbotts Lakes - N lake	17	16	12	nc	nc	nc	nc	nc	8	3	10	46
Rye Meads	100	54	60	nc	nc	nc	nc	nc	174	56	99	62
Cheshunt GPs:	108	110	170	119	80	129	109	272	183	218	173	167
Cheshunt GPs:
Herts:	56	53	76	48	32	48	72	171	25	50	70	76
Herts:
Bowyers Water	12	5	13	6	nc	17	20	60	12	6	7	5
Cheshunt Lake	7	5	10	11	4	1	4	13	2	3	3	10
Northmet Lake	31	39	36	26	20	24	48	88	8	21	38	36
Slipe Lane Lake	6	2	6	0	2	1	0	7	0	14	8	12
Turnford Lakes	0	2	11	5	6	5	0	3	3	6	14	13
ex-Herts:	3	37	64	60	39	76	26	79	85	83	69	61
ex-Herts:
Friday Lake	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	3	4	25	30	5	16	26	11	22	27	7	18
Met Police Pit	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	33	39	30	34	60	nc	68	63	56	62	43
Essex:	49	20	30	11	9	5	11	22	73	85	34	30
Essex:
Hall Marsh Scrape	17	4	18	11	9	5	11	22	5	nc	18	2
Holyfield Marsh Lake	32	16	12	nc	nc	nc	nc	nc	68	85	16	28
Radwell Mill	77	58	20	21	20	50	nc	54	63	40	77	54
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	67	175	194
Fairlands Valley Park	74	55	75	nc	nc	nc	nc	nc	nc	nc	nc	188
Verulamium Park	124	93	119	119	77	149	187	243	210	167	197	155
Tyttenhanger GPs - all	36	25	10	11	11	30	16	15	34	46	146	94
Aldenham Reservoir	76	53	nc	14	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	6	nc	4	6	9	15	25	2	11	9	7	4
Tring Reservoirs	44	90	86	38	76	125	301	405	396	172	98	nc

ShovelerTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	25	2	0	0	0	2	0	4	7	40	23	16
Batchworth Lake	0	0	0	0	0	0	0	0	0	3	0	3
Stocker's and Bury Lakes	15	1	0	0	0	0	0	1	5	29	11	9
Maple Lodge NR	6	1	0	0	0	2	0	2	2	7	5	3
Lynsters Lake	nc	0	0	0	0	0	nc	0	0	0	0	0
Pynesfield North/South Lakes	0	0	0	0	0	0	nc	0	0	1	3	0
Helicon Lake	3	0	0	0	0	0	0	0	0	0	0	1
Troy Mill Lake	1	0	0	0	0	0	0	1	0	0	4	0
Lea Valley:	388	135	86	16	6	9	17	13	235	213	210	158
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	nc	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	3	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
King's Meads	21	8	16	10	4	4	11	7	9	25	15	nc
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	nc	nc	nc	nc	nc	0	2
Amwell NR - others	102	32	4	6	1	5	6	3	21	48	42	13
Stanstead Abbotts Lakes - N lake	3	2	10	nc	nc	nc	nc	nc	1	11	6	17
Rye Meads	112	21	32	nc	nc	nc	nc	nc	122	65	58	70
Cheshunt GPs:	147	72	24	0	1	0	0	3	82	64	89	56
Cheshunt GPs:
Herts:	60	27	9	0	0	0	0	0	0	1	20	21
Herts:
Bowyers Water	34	1	3	0	nc	0	0	0	0	0	3	3
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	0	4	2	0	0	0	0	0	0	0	17	16
Slipe Lane Lake	26	22	4	0	0	0	0	0	0	0	0	0
Turnford Lakes	0	0	0	0	0	0	0	0	0	1	0	2
ex-Herts:	62	2	0	0	0	0	0	3	51	43	23	24
ex-Herts:
Friday Lake	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	0	0	0	0	2	42	17	9	1
Met Police Pit	62	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	2	0	0	0	0	nc	1	9	26	14	23
Essex:	25	43	15	0	1	0	0	0	31	20	46	11
Essex:
Hall Marsh Scrape	9	38	9	0	1	0	0	0	0	nc	4	0
Holyfield Marsh Lake	16	5	6	nc	nc	nc	nc	nc	31	20	42	11
Radwell Mill	0	0	0	0	0	0	nc	0	0	0	1	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	3	12
Fairlands Valley Park	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	2	0	0	0	0	0	0	0	0	8	3	0
Tyttenhanger GPs - all	4	4	7	6	2	1	1	0	0	0	9	15
Aldenham Reservoir	10	10	nc	0	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	3	nc	1	4	0	0	0	4	55	53	7	6
Tring Reservoirs	92	118	20	0	1	2	5	28	75	145	71	nc

PochardTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	57	33	35	26	34	17	2	16	47	158	78	117
Batchworth Lake	2	0	3	1	0	0	0	0	0	0	0	8
Stocker's and Bury Lakes	43	18	16	8	7	0	0	15	47	147	47	100
Maple Lodge NR	5	3	14	15	17	9	2	1	0	6	7	1
Lynsters Lake	nc	0	0	0	0	0	nc	0	0	4	1	0
Pynesfield North/South Lakes	6	5	0	0	0	2	nc	0	0	0	1	8
Helicon Lake	0	0	1	0	0	0	0	0	0	0	0	0
Troy Mill Lake	1	7	1	2	10	6	0	0	0	1	22	0
Lea Valley:	152	120	74	15	22	32	15	25	61	56	139	123
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	nc	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
King's Meads	6	10	8	8	9	4	4	2	0	0	7	nc
Amwell GP - Ware / Thrift GP	9	2	1	2	nc	nc	nc	nc	nc	nc	7	15
Amwell NR - others	52	47	7	2	6	24	10	22	53	23	58	16
Stanstead Abbotts Lakes - N lake	14	14	15	nc	nc	nc	nc	nc	5	12	21	14
Rye Meads	12	5	5	nc	nc	nc	nc	nc	1	0	3	4
Cheshunt GPs:	59	42	38	3	7	4	1	1	2	21	43	74
Cheshunt GPs:
Herts:	17	9	4	1	0	1	0	0	1	4	6	25
Herts:
Bowyers Water	15	6	0	0	nc	0	0	0	1	3	6	22
Cheshunt Lake	2	3	4	0	0	0	0	0	0	1	0	3
Northmet Lake	0	0	0	1	0	1	0	0	0	0	0	0
Slipe Lane Lake	0	0	0	0	0	0	0	0	0	0	0	0
Turnford Lakes	0	0	0	0	0	0	0	0	0	0	0	0
ex-Herts:	0	8	8	2	7	3	1	1	1	7	11	24
ex-Herts:
Friday Lake	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	1	1	0	0	1	1	0	1	1	1	4
Met Police Pit	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	7	7	2	7	2	nc	1	0	6	10	20
Essex:	42	25	26	0	0	0	0	0	0	10	26	25
Essex:
Hall Marsh Scrape	0	0	0	0	0	0	0	0	0	nc	0	0
Holyfield Marsh Lake	42	25	26	nc	nc	nc	nc	nc	0	10	26	25
Radwell Mill	1	0	0	0	0	0	nc	0	0	0	0	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	3	11	14
Fairlands Valley Park	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	7	5	2	0	0	3	0	0	0	0	0	0
Tyttenhanger GPs - all	1	1	2	0	0	1	4	5	0	0	0	2
Aldenham Reservoir	20	3	nc	1	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	21	nc	32	0	0	15	171	195	16	8	10	17
Tring Reservoirs	66	154	17	3	1	1	6	6	87	151	80	nc

Tufted DuckTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	208	625	322	140	88	82	27	93	231	342	443	625
Batchworth Lake	12	18	5	3	12	0	0	0	4	9	26	14
Stocker's and Bury Lakes	138	285	146	48	28	5	3	48	153	237	134	281
Maple Lodge NR	18	20	15	23	21	17	19	11	10	6	5	8
Lynsters Lake	nc	112	42	11	8	9	nc	20	15	3	38	104
Pynesfield North/South Lakes	24	30	54	4	0	17	nc	0	20	72	69	164
Helicon Lake	11	44	10	17	13	30	3	8	1	10	32	24
Troy Mill Lake	5	116	50	34	6	4	2	6	28	5	139	30
Lea Valley:	979	761	722	237	134	123	110	176	630	469	736	708
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	nc	8	0	2	0	0	17	6	11	6	4	8
Stanborough Lakes North	0	0	0	2	nc	nc	nc	nc	nc	nc	0	2
Stanborough Lakes South	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
King's Meads	21	16	29	11	29	19	7	8	9	2	11	nc
Amwell GP - Ware / Thrift GP	81	71	31	49	nc	nc	nc	nc	nc	nc	76	48
Amwell NR - others	156	85	119	87	59	52	52	43	78	86	161	108
Stanstead Abbotts Lakes - N lake	58	64	71	nc	nc	nc	nc	nc	40	51	105	86
Rye Meads	122	139	101	nc	nc	nc	nc	nc	213	114	96	96
Cheshunt GPs:	541	378	371	86	46	52	34	119	279	210	283	360
Cheshunt GPs:
Herts:	192	141	205	51	8	14	22	37	75	98	162	222
Herts:
Bowyers Water	36	40	61	21	nc	5	6	11	31	50	39	39
Cheshunt Lake	18	15	16	0	0	0	0	0	0	7	25	19
Northmet Lake	50	34	98	25	6	9	14	24	34	23	44	108
Slipe Lane Lake	48	36	3	4	0	0	2	2	6	15	38	43
Turnford Lakes	40	16	27	1	2	0	0	0	4	3	16	13
ex-Herts:	128	97	102	35	38	38	12	82	56	37	60	70
ex-Herts:
Friday Lake	20	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	28	38	36	14	2	4	12	17	20	2	12	29
Met Police Pit	80	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	59	66	21	36	34	nc	65	36	35	48	41
Essex:	221	140	64	0	0	0	0	0	148	75	61	68
Essex:
Hall Marsh Scrape	1	5	4	0	0	0	0	0	0	nc	5	0
Holyfield Marsh Lake	220	135	60	nc	nc	nc	nc	nc	148	75	56	68
Radwell Mill	0	0	0	0	2	2	nc	0	0	0	0	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	21	31	50
Fairlands Valley Park	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	12	10	27	30	17	29	8	14	9	2	8	2
Tyttenhanger GPs - all	6	22	33	6	23	8	6	7	6	0	16	20
Aldenham Reservoir	34	27	nc	13	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	84	nc	109	65	10	35	116	290	90	41	56	76
Tring Reservoirs	174	399	230	222	37	73	76	103	72	113	189	nc

GoldeneyeTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	16	7	3	0	0	0	0	0	0	0	5	14
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	0
Stocker's and Bury Lakes	16	7	3	0	0	0	0	0	0	0	5	14
Maple Lodge NR	0	0	0	0	0	0	0	0	0	0	0	0
Lynsters Lake	nc	0	0	0	0	0	nc	0	0	0	0	0
Pynesfield North/South Lakes	0	0	0	0	0	0	nc	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:	12	4	5	0	0	0	0	0	0	0	2	5
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	nc	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
King's Meads	0	0	0	0	0	0	0	0	0	0	0	nc
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	nc	nc	nc	nc	nc	1	0
Amwell NR - others	7	0	4	0	0	0	0	0	0	0	1	1
Stanstead Abbotts Lakes - N lake	0	0	1	nc	nc	nc	nc	nc	0	0	0	2
Rye Meads	0	0	0	nc	nc	nc	nc	nc	0	0	0	0
Cheshunt GPs:	5	4	0	0	0	0	0	0	0	0	0	2
Cheshunt GPs:
Herts:	3	0	0	0	0	0	0	0	0	0	0	0
Herts:
Bowyers Water	0	0	0	0	nc	0	0	0	0	0	0	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	3	0	0	0	0	0	0	0	0	0	0	0
Slipe Lane Lake	0	0	0	0	0	0	0	0	0	0	0	0
Turnford Lakes	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	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	0	0	0	0	0	0	0	0	0
Met Police Pit	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	0	0	0	0	0	nc	0	0	0	0	0
Essex:	2	4	0	0	0	0	0	0	0	0	0	2
Essex:
Hall Marsh Scrape	0	0	0	0	0	0	0	0	0	nc	0	0
Holyfield Marsh Lake	2	4	0	nc	nc	nc	nc	nc	0	0	0	2
Radwell Mill	0	0	0	0	0	0	nc	0	0	0	0	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Fairlands Valley Park	0	0	0	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	0	0	0	0	0	0
Aldenham Reservoir	1	0	nc	0	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	3	nc	3	0	0	0	0	0	0	0	0	1
Tring Reservoirs	2	0	4	0	0	0	0	0	0	0	2	nc

Ruddy DuckTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	0	0	0	0	0	0	0	0	0	0	0	0
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	0
Stocker's and Bury Lakes	0	0	0	0	0	0	0	0	0	0	0	0
Maple Lodge NR	0	0	0	0	0	0	0	0	0	0	0	0
Lynsters Lake	nc	0	0	0	0	0	nc	0	0	0	0	0
Pynesfield North/South Lakes	0	0	0	0	0	0	nc	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:	0	0	0	0	0	0	0	0	0	0	0	0
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	nc	0	0	0	0	0	0	0	0	0	0	0
Stanborough Lakes North	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Stanborough Lakes South	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
King's Meads	0	0	0	0	0	0	0	0	0	0	0	nc
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Amwell NR - others	0	0	0	0	0	0	0	0	0	0	0	0
Stanstead Abbotts Lakes - N lake	0	0	0	nc	nc	nc	nc	nc	0	0	0	0
Rye Meads	0	0	0	nc	nc	nc	nc	nc	0	0	0	0
Cheshunt GPs:	0	0	0	0	0	0	0	0	0	0	0	0
Cheshunt GPs:
Herts:	0	0	0	0	0	0	0	0	0	0	0	0
Herts:
Bowyers Water	0	0	0	0	nc	0	0	0	0	0	0	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	0	0	0	0	0	0	0	0	0	0	0	0
Slipe Lane Lake	0	0	0	0	0	0	0	0	0	0	0	0
Turnford Lakes	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	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	0	0	0	0	0	0	0	0	0
Met Police Pit	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	0	0	0	0	0	nc	0	0	0	0	0
Essex:	0	0	0	0	0	0	0	0	0	0	0	0
Essex:
Hall Marsh Scrape	0	0	0	0	0	0	0	0	0	nc	0	0
Holyfield Marsh Lake	0	0	0	nc	nc	nc	nc	nc	0	0	0	0
Radwell Mill	0	0	0	0	0	0	nc	0	0	0	0	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Fairlands Valley Park	0	0	0	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	0	0	0	0	0	0
Aldenham Reservoir	0	0	nc	0	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	0	nc	0	0	0	0	0	0	0	0	0	0
Tring Reservoirs	0	0	0	0	0	0	0	0	0	0	0	nc

Little GrebeTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	4	3	16	4	4	6	6	9	10	6	9	7
Batchworth Lake	0	0	0	0	0	0	0	0	0	1	0	0
Stocker's and Bury Lakes	0	0	0	0	0	0	0	0	0	0	0	0
Maple Lodge NR	4	3	16	4	4	6	6	9	8	5	5	4
Lynsters Lake	nc	0	0	0	0	0	nc	0	0	0	0	0
Pynesfield North/South Lakes	0	0	0	0	0	0	nc	0	1	0	3	3
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	1	0	1	0
Lea Valley:	28	27	38	4	7	5	7	11	97	55	65	53
Lea Valley:
East Hyde	5	0	2	2	4	2	2	2	0	1	0	2
Brocket Park	nc	7	3	0	1	0	1	4	10	10	12	9
Stanborough Lakes North	0	1	0	0	nc	nc	nc	nc	nc	nc	2	2
Stanborough Lakes South	1	1	0	0	nc	nc	nc	nc	nc	nc	0	1
King's Meads	4	1	4	2	1	3	4	5	4	3	5	nc
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	nc	nc	nc	nc	nc	1	0
Amwell NR - others	0	0	0	0	0	0	0	0	0	1	2	0
Stanstead Abbotts Lakes - N lake	0	0	1	nc	nc	nc	nc	nc	0	5	2	6
Rye Meads	12	13	21	nc	nc	nc	nc	nc	79	29	32	25
Cheshunt GPs:	6	4	7	0	1	0	0	0	4	6	9	8
Cheshunt GPs:
Herts:	0	1	4	0	1	0	0	0	2	3	0	2
Herts:
Bowyers Water	0	0	0	0	nc	0	0	0	2	3	0	1
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	0	0	4	0	1	0	0	0	0	0	0	0
Slipe Lane Lake	0	1	0	0	0	0	0	0	0	0	0	1
Turnford Lakes	0	0	0	0	0	0	0	0	0	0	0	0
ex-Herts:	0	2	1	0	0	0	0	0	0	1	5	2
ex-Herts:
Friday Lake	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	1	0	0	0	0	0	0	0	0	0	0
Met Police Pit	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	1	1	0	0	0	nc	0	0	1	5	2
Essex:	6	1	2	0	0	0	0	0	2	2	4	4
Essex:
Hall Marsh Scrape	0	0	0	0	0	0	0	0	0	nc	0	0
Holyfield Marsh Lake	6	1	2	nc	nc	nc	nc	nc	2	2	4	4
Radwell Mill	0	0	0	0	0	0	nc	0	0	0	2	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	22	37	26
Fairlands Valley Park	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc	0
Verulamium Park	0	0	0	1	2	0	2	0	0	0	1	0
Tyttenhanger GPs - all	0	0	0	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	0	1	nc	0	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	1	nc	0	3	2	1	1	5	8	8	1	0
Tring Reservoirs	0	2	2	0	0	0	0	7	11	23	22	nc

Great Crested GrebeTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	29	38	29	38	40	37	20	59	73	51	45	41
Batchworth Lake	8	4	3	5	5	4	8	8	10	8	5	2
Stocker's and Bury Lakes	8	10	10	5	19	22	2	5	8	7	8	5
Maple Lodge NR	0	1	1	2	2	2	2	2	2	2	2	0
Lynsters Lake	nc	9	1	4	5	1	nc	11	10	5	7	5
Pynesfield North/South Lakes	3	4	0	5	2	4	nc	12	12	6	8	9
Helicon Lake	0	1	2	4	2	2	0	2	2	3	2	4
Troy Mill Lake	10	9	12	13	5	2	8	19	29	20	13	16
Lea Valley:	58	65	43	42	28	43	24	48	101	102	87	81
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
Brocket Park	nc	1	2	2	2	6	3	2	6	1	2	0
Stanborough Lakes North	2	0	5	2	nc	nc	nc	nc	nc	nc	2	2
Stanborough Lakes South	8	10	7	12	nc	nc	nc	nc	nc	nc	4	8
King's Meads	0	0	0	0	0	0	0	0	0	0	0	nc
Amwell GP - Ware / Thrift GP	2	0	2	1	nc	nc	nc	nc	nc	nc	3	4
Amwell NR - others	9	3	5	7	6	5	2	8	12	11	14	5
Stanstead Abbotts Lakes - N lake	3	3	3	nc	nc	nc	nc	nc	6	12	6	6
Rye Meads	0	0	0	nc	nc	nc	nc	nc	2	0	0	0
Cheshunt GPs:	34	48	19	18	20	32	19	38	75	78	56	56
Cheshunt GPs:
Herts:	9	8	8	9	6	20	13	23	23	16	10	12
Herts:
Bowyers Water	5	5	5	6	nc	15	11	18	20	15	8	7
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	4	2	3	3	5	4	2	3	2	1	1	3
Slipe Lane Lake	0	1	0	0	0	0	0	0	0	0	0	0
Turnford Lakes	0	0	0	0	1	1	0	2	1	0	1	2
ex-Herts:	8	16	11	9	14	12	6	15	11	18	18	14
ex-Herts:
Friday Lake	1	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	6	6	8	6	4	8	6	7	5	8	8	6
Met Police Pit	1	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	10	3	3	10	4	nc	8	6	10	10	8
Essex:	17	24	0	0	0	0	0	0	41	44	28	30
Essex:
Hall Marsh Scrape	0	0	0	0	0	0	0	0	0	nc	0	0
Holyfield Marsh Lake	17	24	0	nc	nc	nc	nc	nc	41	44	28	30
Radwell Mill	0	0	0	0	0	0	nc	0	0	0	0	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	2	1	0
Fairlands Valley Park	0	1	0	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	5	1	11	8	8	15	13	9	Present	14	14	28
Aldenham Reservoir	19	21	nc	19	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	8	nc	11	10	23	26	48	56	41	26	15	13
Tring Reservoirs	20	39	16	27	32	29	27	37	42	69	69	nc

CormorantTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	19	17	15	13	8	11	4	24	10	15	31	38
Batchworth Lake	1	0	0	0	0	0	1	0	1	0	0	2
Stocker's and Bury Lakes	15	14	14	3	1	6	1	2	7	13	25	24
Maple Lodge NR	1	0	0	2	1	3	2	5	0	0	1	0
Lynsters Lake	nc	0	0	2	4	0	nc	0	0	1	0	3
Pynesfield North/South Lakes	2	0	0	1	1	0	nc	0	0	1	1	0
Helicon Lake	0	0	0	0	0	0	0	0	0	0	0	0
Troy Mill Lake	0	3	1	5	1	2	0	17	2	0	4	9
Lea Valley:	169	54	134	49	26	37	22	40	73	86	110	206
Lea Valley:
East Hyde	0	0	0	1	0	1	1	1	0	1	0	1
Brocket Park	nc	2	1	3	1	4	4	3	6	5	4	8
Stanborough Lakes North	17	5	2	1	nc	nc	nc	nc	nc	nc	5	12
Stanborough Lakes South	1	0	0	1	nc	nc	nc	nc	nc	nc	0	4
King's Meads	1	1	0	1	1	1	2	1	5	4	1	nc
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	nc	nc	nc	nc	nc	0	0
Amwell NR - others	53	19	33	37	19	24	8	16	19	18	22	11
Stanstead Abbotts Lakes - N lake	4	9	0	nc	nc	nc	nc	nc	3	0	8	7
Rye Meads	4	0	0	nc	nc	nc	nc	nc	11	8	12	8
Cheshunt GPs:	89	18	98	5	5	7	7	19	29	50	58	155
Cheshunt GPs:
Herts:	32	9	2	2	1	1	1	7	7	9	15	29
Herts:
Bowyers Water	2	1	1	0	nc	0	0	4	2	2	3	2
Cheshunt Lake	4	0	0	1	0	0	0	0	0	0	2	8
Northmet Lake	11	7	0	1	0	1	1	2	5	6	9	11
Slipe Lane Lake	2	0	0	0	0	0	0	1	0	0	0	0
Turnford Lakes	13	1	1	0	1	0	0	0	0	1	1	8
ex-Herts:	12	9	7	3	2	6	6	12	22	41	43	59
ex-Herts:
Friday Lake	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	12	7	7	3	1	3	6	1	8	11	16	20
Met Police Pit	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	2	0	0	1	3	nc	11	14	30	27	39
Essex:	45	0	89	0	2	0	0	0	0	0	0	67
Essex:
Hall Marsh Scrape	0	0	3	0	2	0	0	0	0	nc	0	0
Holyfield Marsh Lake	45	Present	86	nc	nc	nc	nc	nc	0	0	0	67
Radwell Mill	0	0	0	0	0	0	nc	0	0	0	0	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	1	4	3
Fairlands Valley Park	4	2	1	nc	nc	nc	nc	nc	nc	nc	nc	5
Verulamium Park	0	0	0	0	0	0	1	0	0	0	1	0
Tyttenhanger GPs - all	5	2	5	2	3	2	3	4	3	0	5	31
Aldenham Reservoir	9	6	nc	2	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	4	nc	2	2	1	1	0	1	7	5	8	6
Tring Reservoirs	33	45	28	31	24	41	38	43	46	39	67	nc

Grey HeronTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	22	33	29	7	13	12	10	6	8	6	16	10
Batchworth Lake	1	0	0	0	0	1	1	2	1	1	3	1
Stocker's and Bury Lakes	17	28	29	4	7	6	5	2	2	2	4	5
Maple Lodge NR	2	0	0	0	1	2	1	1	1	0	2	0
Lynsters Lake	nc	2	0	0	0	0	nc	0	0	1	1	3
Pynesfield North/South Lakes	0	0	0	2	0	0	nc	0	0	0	1	0
Helicon Lake	1	2	0	0	0	0	0	0	1	0	0	0
Troy Mill Lake	1	1	0	1	5	3	3	1	3	2	5	1
Lea Valley:	31	25	31	24	25	12	17	12	27	22	40	32
Lea Valley:
East Hyde	1	2	1	3	1	1	2	2	2	2	4	3
Brocket Park	nc	0	0	1	1	1	2	0	0	1	1	0
Stanborough Lakes North	6	3	2	3	nc	nc	nc	nc	nc	nc	6	3
Stanborough Lakes South	5	0	1	1	nc	nc	nc	nc	nc	nc	0	2
King's Meads	0	0	1	1	1	0	5	1	1	2	1	nc
Amwell GP - Ware / Thrift GP	0	0	0	2	nc	nc	nc	nc	nc	nc	0	1
Amwell NR - others	9	12	16	9	19	5	3	5	8	1	9	2
Stanstead Abbotts Lakes - N lake	1	1	0	nc	nc	nc	nc	nc	2	2	3	2
Rye Meads	0	2	6	nc	nc	nc	nc	nc	10	1	2	3
Cheshunt GPs:	9	5	4	4	3	5	5	4	4	13	14	16
Cheshunt GPs:
Herts:	2	1	2	2	1	2	2	1	1	5	4	2
Herts:
Bowyers Water	1	1	2	0	nc	2	2	1	1	1	1	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	1	0	0	2	1	0	0	0	0	2	3	1
Slipe Lane Lake	0	0	0	0	0	0	0	0	0	1	0	0
Turnford Lakes	0	0	0	0	0	0	0	0	0	1	0	1
ex-Herts:	2	1	1	1	0	2	1	2	3	8	8	8
ex-Herts:
Friday Lake	1	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	1	1	1	1	0	1	1	2	2	2	2	3
Met Police Pit	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	0	0	0	0	1	nc	0	1	6	6	5
Essex:	5	3	1	1	2	1	2	1	0	0	2	6
Essex:
Hall Marsh Scrape	1	1	1	1	2	1	2	1	0	nc	2	1
Holyfield Marsh Lake	4	2	0	nc	nc	nc	nc	nc	0	0	0	5
Radwell Mill	4	3	1	1	0	0	nc	0	0	1	1	0
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	3	3
Fairlands Valley Park	0	0	0	nc	nc	nc	nc	nc	nc	nc	nc	1
Verulamium Park	5	8	9	6	4	3	1	1	0	0	1	0
Tyttenhanger GPs - all	8	5	6	7	10	4	5	5	Present	2	3	8
Aldenham Reservoir	6	2	nc	3	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	2	nc	0	0	0	1	2	0	1	2	1	0
Tring Reservoirs	12	36	14	3	14	8	13	9	16	14	5	nc

MoorhenTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	34	23	33	19	15	16	19	26	40	48	53	55
Batchworth Lake	10	2	12	6	2	2	3	8	9	11	5	4
Stocker's and Bury Lakes	9	10	11	3	4	6	11	2	13	12	19	15
Maple Lodge NR	7	4	4	3	5	6	5	8	7	12	17	21
Lynsters Lake	nc	1	0	0	1	0	nc	0	1	0	5	1
Pynesfield North/South Lakes	0	3	2	2	0	0	nc	1	4	6	4	5
Helicon Lake	3	2	2	1	1	0	0	0	1	4	1	3
Troy Mill Lake	5	1	2	4	2	2	0	7	5	3	2	6
Lea Valley:	153	108	119	71	50	28	45	81	301	183	208	176
Lea Valley:
East Hyde	36	9	9	10	10	8	8	11	8	7	7	11
Brocket Park	nc	18	10	8	6	4	11	23	17	20	35	43
Stanborough Lakes North	24	5	5	2	nc	nc	nc	nc	nc	nc	12	8
Stanborough Lakes South	15	4	2	3	nc	nc	nc	nc	nc	nc	8	7
King's Meads	6	14	15	17	7	1	7	18	33	24	5	nc
Amwell GP - Ware / Thrift GP	0	1	7	3	nc	nc	nc	nc	nc	nc	3	5
Amwell NR - others	8	19	9	15	14	10	11	19	38	26	31	8
Stanstead Abbotts Lakes - N lake	5	2	4	nc	nc	nc	nc	nc	15	10	8	7
Rye Meads	43	18	36	nc	nc	nc	nc	nc	164	68	74	59
Cheshunt GPs:	16	18	22	13	13	5	8	10	26	28	25	28
Cheshunt GPs:
Herts:	11	9	12	2	6	2	2	3	14	10	11	9
Herts:
Bowyers Water	6	5	2	0	nc	1	0	1	11	5	4	7
Cheshunt Lake	4	2	4	1	0	0	0	0	1	0	2	1
Northmet Lake	0	1	6	0	6	0	2	2	2	1	4	1
Slipe Lane Lake	1	1	0	0	0	1	0	0	0	1	1	0
Turnford Lakes	0	0	0	1	0	0	0	0	0	3	0	0
ex-Herts:	2	4	7	7	4	1	2	5	9	18	12	12
ex-Herts:
Friday Lake	0	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	1	2	4	1	0	2	2	4	5	4	1
Met Police Pit	2	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	3	5	3	3	1	nc	3	5	13	8	11
Essex:	3	5	3	4	3	2	4	2	3	0	2	7
Essex:
Hall Marsh Scrape	3	5	3	4	3	2	4	2	3	nc	2	3
Holyfield Marsh Lake	Present	Present	0	nc	nc	nc	nc	nc	0	0	0	4
Radwell Mill	0	1	0	1	1	1	nc	3	2	2	0	2
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	49	19	10
Fairlands Valley Park	14	6	2	nc	nc	nc	nc	nc	nc	nc	nc	27
Verulamium Park	41	19	11	15	7	14	25	32	22	35	36	37
Tyttenhanger GPs - all	11	9	7	6	0	5	5	7	Present	13	Present	29
Aldenham Reservoir	19	17	nc	7	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	3	nc	2	2	1	2	4	3	17	24	9	7
Tring Reservoirs	10	27	20	2	3	4	31	60	72	108	97	nc

CootTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	535	511	292	190	209	307	446	871	844	1023	1093	1274
Batchworth Lake	26	12	15	16	11	12	15	22	20	20	21	11
Stocker's and Bury Lakes	256	222	70	53	90	99	208	266	255	293	407	432
Maple Lodge NR	25	21	18	12	12	15	19	23	24	13	15	14
Lynsters Lake	nc	79	59	36	14	26	nc	81	67	31	81	239
Pynesfield North/South Lakes	116	72	46	31	35	33	nc	56	74	67	99	121
Helicon Lake	79	84	58	30	21	30	22	58	54	60	45	82
Troy Mill Lake	33	21	26	12	26	92	182	365	350	539	425	375
Lea Valley:	2030	1548	968	420	242	363	512	820	2157	2322	2470	2272
Lea Valley:
East Hyde	19	10	10	12	8	8	11	10	8	5	7	10
Brocket Park	nc	62	35	31	17	33	50	47	96	101	89	108
Stanborough Lakes North	36	16	18	11	nc	nc	nc	nc	nc	nc	51	48
Stanborough Lakes South	0	1	6	6	nc	nc	nc	nc	nc	nc	0	4
King's Meads	54	77	61	21	32	22	52	64	56	28	31	nc
Amwell GP - Ware / Thrift GP	38	27	19	25	nc	nc	nc	nc	nc	nc	16	26
Amwell NR - others	498	235	79	90	51	93	191	214	399	351	435	312
Stanstead Abbotts Lakes - N lake	93	41	52	nc	nc	nc	nc	nc	46	77	113	186
Rye Meads	176	222	183	nc	nc	nc	nc	nc	795	702	680	544
Cheshunt GPs:	1116	857	505	224	134	207	208	485	757	1058	1048	1034
Cheshunt GPs:
Herts:	646	496	269	135	56	89	177	238	303	481	615	635
Herts:
Bowyers Water	264	156	79	74	nc	55	98	156	191	322	330	330
Cheshunt Lake	16	12	6	8	0	2	1	2	0	0	8	17
Northmet Lake	181	125	91	14	21	8	19	30	40	59	120	127
Slipe Lane Lake	124	122	48	18	17	10	37	35	31	68	101	97
Turnford Lakes	61	81	45	21	18	14	22	15	41	32	56	64
ex-Herts:	150	145	174	85	73	111	30	246	263	302	276	288
ex-Herts:
Friday Lake	26	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	51	21	47	22	12	39	30	36	65	85	81	101
Met Police Pit	73	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	nc	124	127	63	61	72	nc	210	198	217	195	187
Essex:	320	216	62	4	5	7	1	1	191	275	157	111
Essex:
Hall Marsh Scrape	5	6	6	4	5	7	1	1	1	nc	1	2
Holyfield Marsh Lake	315	210	56	nc	nc	nc	nc	nc	190	275	156	109
Radwell Mill	3	6	2	3	3	6	nc	2	7	7	3	2
Panshanger Park	nc	nc	nc	nc	nc	nc	nc	nc	nc	174	177	206
Fairlands Valley Park	30	22	20	nc	nc	nc	nc	nc	nc	nc	nc	37
Verulamium Park	108	98	75	65	67	89	105	91	83	101	94	107
Tyttenhanger GPs - all	63	98	40	25	0	42	44	48	Present	98	Present	86
Aldenham Reservoir	345	102	nc	63	nc	nc	nc	nc	nc	nc	nc	nc
Hilfield Park Reservoir	241	nc	109	75	98	136	329	315	285	298	237	179
Tring Reservoirs	240	290	165	136	121	193	442	621	800	872	711	nc