Herts Bird Club - WeBS 2011

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 2011 the Hertfordshire counts were organised by Cath Patrick (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. Aldenham Reservoir was re-started as a WeBS count site in October 2011.

The Sunday count dates in 2011 were; 16 Jan, 13 Feb, 13 Mar, 17 Apr, 15 May, 12 Jun, 17 Jul, 14 Aug, 18 Sep, 16 Oct, 20 Nov, and 18 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:	74	58	56	55	55	64	62	56	93	81	75	104
Colne Valley:
Hampermill Lake	nc	nc	0	2	4	6	nc	nc	nc	5	3	0
Batchworth Lake	11	5	4	1	1	3	3	5	11	9	6	6
Stocker's and Bury Lakes	46	46	44	42	41	44	44	43	47	36	32	43
Maple Lodge	2	0	2	3	2	2	2	2	0	0	0	0
Lynsters Lake	5	2	0	0	2	3	7	2	17	13	18	31
Pynesfield North/South Lakes	2	3	2	1	3	2	2	4	8	8	8	8
Helicon Lake	5	0	2	4	0	2	2	0	3	3	3	10
Troy Mill Lake	3	2	2	2	2	2	2	0	7	7	5	6
Lea Valley:	176	163	121	59	52	61	32	91	168	207	139	171
Lea Valley:
East Hyde	5	5	5	4	4	4	2	2	2	2	2	5
King's Meads	0	4	2	4	4	3	2	2	4	4	5	4
Amwell GP - Ware / Thrift GP	2	7	2	3	nc	4	nc	0	2	0	4	nc
Amwell NR - others	11	9	5	4	4	7	16	21	9	9	9	19
Stanstead Abbotts Lakes - N lake	7	8	8	nc	nc	nc	nc	nc	10	7	6	10
Rye Meads	8	9	6	nc	nc	nc	nc	nc	21	17	13	4
Broxbourne GP	nc	12	nc	nc	0	1	nc	1	nc	5	8	nc
Cheshunt GPs:	143	109	93	44	40	42	12	65	120	163	92	129
Cheshunt GPs:
Herts:	47	42	15	13	9	6	9	16	42	40	60	83
Herts:
Bowyers Water	23	13	2	8	1	0	3	2	7	13	47	47
Cheshunt Lake	3	12	3	1	2	1	0	4	8	4	7	2
Northmet Lake	3	3	1	0	2	1	2	2	7	8	0	16
Slipe Lane Lake	5	6	1	1	2	3	2	2	4	4	3	5
Turnford Lakes	3	2	3	1	2	0	0	2	2	1	0	2
ex-Herts:	59	33	52	31	29	29	3	49	30	30	32	45
ex-Herts:
Friday Lake	0	0	5	0	2	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	5	6	9	nc	3	2	3	2	nc	5	8	9
Met Police Pit	3	2	0	2	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	51	25	38	29	24	27	nc	47	30	25	24	36
Essex:	37	34	26	0	2	7	0	0	48	93	0	1
Essex:
Hall Marsh Scrape	3	8	5	nc	2	7	0	0	nc	2	0	1
Holyfield Marsh Lake	34	26	21	nc	nc	nc	nc	nc	48	91	nc	nc
Radwell Mill	nc	8	8	6	6	5	nc	11	5	8	10	4
Brocket Park	0	0	nc	2	0	3	2	2	3	3	0	0
Panshanger Park	2	2	2	3	3	2	0	7	7	1	2	2
Fairlands Valley Park	3	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	11	20	20
Hilfield Park Reservoir	2	2	2	2	1	2	0	1	nc	nc	nc	2
Tring Reservoirs	16	13	nc	nc	12	nc	48	36	41	42	28	31

Canada GooseTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	74	129	136	152	44	176	227	33	180	196	105	126
Colne Valley:
Hampermill Lake	nc	nc	25	8	0	12	nc	nc	nc	0	19	22
Batchworth Lake	25	11	25	16	19	26	23	16	11	10	15	0
Stocker's and Bury Lakes	43	77	65	124	15	137	182	5	157	182	60	99
Maple Lodge	3	6	14	2	2	0	0	0	0	0	0	0
Lynsters Lake	0	33	2	2	6	0	7	0	3	4	0	1
Pynesfield North/South Lakes	0	0	0	0	0	1	0	0	0	0	0	0
Helicon Lake	3	0	5	0	2	0	8	8	9	0	11	4
Troy Mill Lake	0	2	0	0	0	0	7	4	0	0	0	0
Lea Valley:	479	487	552	356	256	330	305	473	965	827	174	198
Lea Valley:
East Hyde	51	32	30	20	14	14	14	14	30	30	46	55
King's Meads	29	10	5	10	1	3	0	27	5	16	0	0
Amwell GP - Ware / Thrift GP	0	4	8	13	nc	5	nc	15	1	0	2	nc
Amwell NR - others	89	120	138	176	105	94	115	257	5	45	6	21
Stanstead Abbotts Lakes - N lake	7	27	46	nc	nc	nc	nc	nc	8	2	4	0
Rye Meads	43	4	4	nc	nc	nc	nc	nc	0	1	0	0
Broxbourne GP	nc	5	nc	nc	0	0	nc	1	nc	3	0	nc
Cheshunt GPs:	260	285	321	137	136	214	176	159	916	730	116	122
Cheshunt GPs:
Herts:	70	73	109	65	68	147	136	86	48	81	53	102
Herts:
Bowyers Water	22	8	8	9	9	52	54	14	0	21	16	17
Cheshunt Lake	37	12	3	3	22	7	23	31	7	25	21	13
Northmet Lake	9	5	49	3	20	55	31	2	5	19	12	68
Slipe Lane Lake	0	0	6	3	4	2	0	2	0	2	2	0
Turnford Lakes	0	0	19	9	1	2	2	2	14	2	0	4
ex-Herts:	18	49	78	72	54	56	40	57	318	60	45	14
ex-Herts:
Friday Lake	0	0	5	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	14	12	20	nc	12	33	40	5	nc	27	15	10
Met Police Pit	0	2	7	43	21	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	4	35	46	29	21	23	nc	52	318	33	30	4
Essex:	172	163	134	0	14	11	0	16	550	589	18	6
Essex:
Hall Marsh Scrape	12	20	2	nc	14	11	0	16	nc	9	18	6
Holyfield Marsh Lake	160	143	132	nc	nc	nc	nc	nc	550	580	nc	nc
Radwell Mill	nc	0	2	2	2	0	nc	0	0	0	0	0
Brocket Park	56	42	nc	4	6	8	0	0	0	0	21	74
Panshanger Park	0	89	59	30	34	42	57	0	0	0	9	9
Fairlands Valley Park	129	100	nc	117	76	184	182	82	204	382	86	83
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	113	70	108
Hilfield Park Reservoir	0	0	2	2	6	120	64	2	nc	nc	nc	1
Tring Reservoirs	13	45	nc	nc	9	nc	47	171	2	144	79	86

WigeonTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	71	18	0	1	0	0	0	0	0	3	14	48
Colne Valley:
Hampermill Lake	nc	nc	0	0	0	0	nc	nc	nc	0	0	0
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	0
Stocker's and Bury Lakes	7	15	0	1	0	0	0	0	0	0	0	0
Maple Lodge	11	0	0	0	0	0	0	0	0	0	0	0
Lynsters Lake	0	0	0	0	0	0	0	0	0	0	4	27
Pynesfield North/South Lakes	53	3	0	0	0	0	0	0	0	3	8	12
Helicon Lake	0	0	0	0	0	0	0	0	0	0	0	9
Troy Mill Lake	0	0	0	0	0	0	0	0	0	0	2	0
Lea Valley:	236	185	117	0	0	0	0	0	68	455	208	265
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
King's Meads	44	48	39	0	0	0	0	0	0	6	2	5
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	0	nc	0	0	0	0	nc
Amwell NR - others	2	0	0	0	0	0	0	0	1	8	53	29
Stanstead Abbotts Lakes - N lake	0	0	0	nc	nc	nc	nc	nc	0	3	3	7
Rye Meads	0	0	0	nc	nc	nc	nc	nc	0	0	0	0
Broxbourne GP	nc	0	nc	nc	0	0	nc	0	nc	0	0	nc
Cheshunt GPs:	190	137	78	0	0	0	0	0	67	438	150	224
Cheshunt GPs:
Herts:	22	0	0	0	0	0	0	0	2	190	148	224
Herts:
Bowyers Water	22	0	0	0	0	0	0	0	2	190	145	224
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	1	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	2	0
ex-Herts:
Friday Lake	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	nc	0	0	0	0	nc	0	0	0
Met Police Pit	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	0	0	0	0	0	0	nc	0	0	0	2	0
Essex:	168	137	78	0	0	0	0	0	65	248	0	0
Essex:
Hall Marsh Scrape	8	16	44	nc	0	0	0	0	nc	2	0	0
Holyfield Marsh Lake	160	121	34	nc	nc	nc	nc	nc	65	246	nc	nc
Radwell Mill	nc	0	0	0	0	0	nc	0	0	0	0	0
Brocket Park	0	0	nc	0	0	0	0	0	0	0	0	0
Panshanger Park	0	0	0	0	0	0	0	0	0	0	0	0
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	Present	7	88
Hilfield Park Reservoir	9	29	0	0	0	0	0	0	nc	nc	nc	96
Tring Reservoirs	48	56	nc	nc	1	nc	9	0	34	288	259	337

GadwallTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	143	74	13	22	16	48	111	22	9	4	52	73
Colne Valley:
Hampermill Lake	nc	nc	0	0	1	0	nc	nc	nc	0	0	0
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	1
Stocker's and Bury Lakes	22	14	3	2	0	0	8	11	1	4	3	2
Maple Lodge	0	9	2	11	6	45	65	5	0	0	0	0
Lynsters Lake	18	11	3	0	0	0	0	0	4	0	20	12
Pynesfield North/South Lakes	95	30	2	4	0	0	0	0	0	0	28	31
Helicon Lake	6	10	0	0	2	0	0	0	4	0	1	5
Troy Mill Lake	2	0	3	5	7	3	38	6	0	0	0	22
Lea Valley:	570	459	411	77	71	45	50	70	515	879	566	773
Lea Valley:
East Hyde	57	8	8	4	2	2	2	0	0	0	6	10
King's Meads	35	59	62	48	38	19	17	16	32	33	3	5
Amwell GP - Ware / Thrift GP	1	5	0	3	nc	0	nc	1	0	3	0	nc
Amwell NR - others	40	58	69	11	18	19	16	21	36	134	269	220
Stanstead Abbotts Lakes - N lake	42	34	24	nc	nc	nc	nc	nc	15	8	28	69
Rye Meads	156	117	115	nc	nc	nc	nc	nc	155	91	104	104
Broxbourne GP	nc	0	nc	nc	0	0	nc	0	nc	16	6	nc
Cheshunt GPs:	239	178	133	11	13	5	15	32	277	594	150	365
Cheshunt GPs:
Herts:	122	40	53	0	0	2	2	13	14	25	125	335
Herts:
Bowyers Water	51	4	39	0	0	0	0	4	2	21	76	214
Cheshunt Lake	42	11	2	0	0	0	0	0	0	0	13	18
Northmet Lake	1	6	0	0	0	2	2	9	0	2	18	10
Slipe Lane Lake	8	7	0	0	0	0	0	0	0	0	0	9
Turnford Lakes	8	6	9	0	0	0	0	0	8	2	7	44
ex-Herts:	53	72	41	11	10	3	10	19	12	17	25	30
ex-Herts:
Friday Lake	6	4	0	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	9	0	0	nc	0	0	10	8	nc	1	7	11
Met Police Pit	16	65	35	0	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	22	3	6	11	10	3	nc	11	12	16	18	19
Essex:	64	66	39	0	3	0	3	0	251	552	0	0
Essex:
Hall Marsh Scrape	8	1	3	nc	3	0	3	0	nc	0	0	0
Holyfield Marsh Lake	56	65	36	nc	nc	nc	nc	nc	251	552	nc	nc
Radwell Mill	nc	2	2	0	0	0	nc	0	0	0	7	0
Brocket Park	2	0	nc	0	0	0	0	0	0	0	0	0
Panshanger Park	20	16	14	8	10	20	0	20	12	2	2	26
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	47	30	38
Hilfield Park Reservoir	35	11	4	18	11	9	49	10	nc	nc	nc	28
Tring Reservoirs	10	9	nc	nc	14	nc	7	6	18	61	22	22

TealTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	29	23	12	1	0	0	3	8	17	31	58	14
Colne Valley:
Hampermill Lake	nc	nc	0	0	0	0	nc	nc	nc	0	2	0
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	0
Stocker's and Bury Lakes	1	0	3	0	0	0	0	0	0	0	0	1
Maple Lodge	28	23	9	1	0	0	3	8	17	31	56	13
Lynsters Lake	0	0	0	0	0	0	0	0	0	0	0	0
Pynesfield North/South Lakes	0	0	0	0	0	0	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:	316	200	199	15	0	0	0	15	85	129	137	163
Lea Valley:
East Hyde	2	4	4	2	0	0	0	0	0	0	1	14
King's Meads	41	17	42	7	0	0	0	10	21	30	30	5
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	0	nc	0	0	0	0	nc
Amwell NR - others	28	8	13	6	0	0	0	5	3	7	7	16
Stanstead Abbotts Lakes - N lake	5	0	7	nc	nc	nc	nc	nc	0	0	1	10
Rye Meads	215	143	104	nc	nc	nc	nc	nc	41	78	81	113
Broxbourne GP	nc	0	nc	nc	0	0	nc	0	nc	0	0	nc
Cheshunt GPs:	25	28	29	0	0	0	0	0	20	14	17	5
Cheshunt GPs:
Herts:	2	0	4	0	0	0	0	0	0	0	13	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
Northmet Lake	0	0	0	0	0	0	0	0	0	0	3	0
Slipe Lane Lake	2	0	0	0	0	0	0	0	0	0	0	0
Turnford Lakes	0	0	2	0	0	0	0	0	0	0	8	0
ex-Herts:	0	0	2	0	0	0	0	0	0	1	0	0
ex-Herts:
Friday Lake	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	nc	0	0	0	0	nc	0	0	0
Met Police Pit	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	0	0	2	0	0	0	nc	0	0	1	0	0
Essex:	23	28	23	0	0	0	0	0	20	13	4	5
Essex:
Hall Marsh Scrape	5	5	8	nc	0	0	0	0	nc	2	4	5
Holyfield Marsh Lake	18	23	15	nc	nc	nc	nc	nc	20	11	nc	nc
Radwell Mill	nc	0	0	0	0	0	nc	0	0	0	1	1
Brocket Park	0	0	nc	0	0	0	0	0	0	0	3	0
Panshanger Park	0	1	0	0	0	0	0	6	0	0	2	8
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Hilfield Park Reservoir	0	0	0	0	0	0	0	0	nc	nc	nc	3
Tring Reservoirs	154	65	nc	nc	0	nc	6	16	165	246	0	0

MallardTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	166	150	155	169	163	181	146	216	188	114	187	105
Colne Valley:
Hampermill Lake	nc	nc	18	35	28	45	nc	nc	nc	7	12	9
Batchworth Lake	56	50	37	34	35	49	64	41	22	22	33	31
Stocker's and Bury Lakes	44	39	52	49	32	49	37	72	77	26	53	36
Maple Lodge	31	25	16	19	28	30	21	44	33	37	32	5
Lynsters Lake	3	16	5	4	0	1	2	3	1	1	7	3
Pynesfield North/South Lakes	4	2	11	8	13	1	3	3	2	7	11	12
Helicon Lake	24	15	6	10	8	0	14	49	40	11	26	6
Troy Mill Lake	4	3	10	10	19	6	5	4	13	3	13	3
Lea Valley:	491	492	453	225	235	305	252	303	496	386	486	498
Lea Valley:
East Hyde	62	30	16	10	10	10	12	10	10	12	12	20
King's Meads	18	26	33	30	47	61	45	44	13	10	5	17
Amwell GP - Ware / Thrift GP	3	5	0	3	nc	4	nc	6	1	0	9	nc
Amwell NR - others	52	36	18	35	34	22	39	16	55	69	104	75
Stanstead Abbotts Lakes - N lake	23	30	28	nc	nc	nc	nc	nc	13	0	10	14
Rye Meads	35	75	90	nc	nc	nc	nc	nc	107	54	68	56
Broxbourne GP	nc	2	nc	nc	1	4	nc	1	nc	3	5	nc
Cheshunt GPs:	298	288	268	147	143	204	156	226	297	238	273	316
Cheshunt GPs:
Herts:	185	172	154	109	95	136	139	190	142	111	171	195
Herts:
Bowyers Water	23	18	17	27	19	26	40	52	29	10	18	20
Cheshunt Lake	16	17	7	1	9	17	12	5	22	2	20	29
Northmet Lake	50	47	43	27	14	18	4	54	11	50	14	69
Slipe Lane Lake	16	15	11	10	5	11	0	10	0	2	17	6
Turnford Lakes	10	14	17	6	12	14	3	4	8	17	14	5
ex-Herts:	44	77	79	38	34	45	17	36	88	74	73	92
ex-Herts:
Friday Lake	3	0	8	0	2	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	23	23	nc	3	6	17	4	nc	9	10	17
Met Police Pit	6	4	11	5	2	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	35	50	37	33	27	39	nc	32	88	65	63	75
Essex:	69	39	35	0	14	23	0	0	67	53	29	29
Essex:
Hall Marsh Scrape	43	16	9	nc	14	23	0	0	nc	7	29	29
Holyfield Marsh Lake	26	23	26	nc	nc	nc	nc	nc	67	46	nc	nc
Radwell Mill	nc	103	64	31	38	57	nc	66	38	27	75	82
Brocket Park	8	12	nc	4	7	15	17	11	4	11	10	22
Panshanger Park	150	173	126	70	92	83	300	300	300	300	200	150
Fairlands Valley Park	222	0	nc	133	137	117	209	111	148	224	219	216
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	56	41	84
Hilfield Park Reservoir	3	11	11	13	26	16	4	7	nc	nc	nc	9
Tring Reservoirs	129	102	nc	nc	195	nc	469	0	207	184	112	111

ShovelerTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	47	73	126	8	0	5	5	13	18	19	50	125
Colne Valley:
Hampermill Lake	nc	nc	0	5	0	0	nc	nc	nc	1	0	0
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	0
Stocker's and Bury Lakes	38	59	124	0	0	0	0	10	15	13	43	125
Maple Lodge	2	9	2	3	0	5	5	3	3	5	7	0
Lynsters Lake	6	0	0	0	0	0	0	0	0	0	0	0
Pynesfield North/South Lakes	1	0	0	0	0	0	0	0	0	0	0	0
Helicon Lake	0	4	0	0	0	0	0	0	0	0	0	0
Troy Mill Lake	0	1	0	0	0	0	0	0	0	0	0	0
Lea Valley:	193	220	155	2	2	4	0	45	185	212	155	141
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	5
King's Meads	8	14	29	0	0	1	0	4	11	7	12	0
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	0	nc	0	0	0	0	nc
Amwell NR - others	19	38	24	2	0	3	0	7	74	27	72	34
Stanstead Abbotts Lakes - N lake	19	4	5	nc	nc	nc	nc	nc	0	9	9	8
Rye Meads	32	42	42	nc	nc	nc	nc	nc	45	51	33	24
Broxbourne GP	nc	0	nc	nc	0	0	nc	0	nc	0	0	nc
Cheshunt GPs:	115	122	55	0	2	0	0	34	55	118	29	70
Cheshunt GPs:
Herts:	88	98	22	0	0	0	0	3	0	18	22	62
Herts:
Bowyers Water	22	51	11	0	0	0	0	0	0	2	4	20
Cheshunt Lake	2	0	0	0	0	0	0	0	0	0	2	9
Northmet Lake	1	33	2	0	0	0	0	1	0	1	4	14
Slipe Lane Lake	4	0	0	0	0	0	0	0	0	0	2	3
Turnford Lakes	28	0	9	0	0	0	0	0	0	7	3	0
ex-Herts:	10	8	13	0	2	0	0	31	0	34	7	6
ex-Herts:
Friday Lake	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	6	0	nc	0	0	0	0	nc	4	5	2
Met Police Pit	5	2	13	0	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	5	0	0	0	2	0	nc	31	0	30	2	4
Essex:	17	16	20	0	0	0	0	0	55	66	0	2
Essex:
Hall Marsh Scrape	3	4	2	nc	0	0	0	0	nc	0	0	2
Holyfield Marsh Lake	14	12	18	nc	nc	nc	nc	nc	55	66	nc	nc
Radwell Mill	nc	0	0	0	0	0	nc	0	0	0	0	0
Brocket Park	0	0	nc	0	0	0	0	0	0	0	0	0
Panshanger Park	0	0	2	0	2	0	0	0	0	0	0	2
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	2	2
Hilfield Park Reservoir	3	4	1	5	0	0	0	0	nc	nc	nc	0
Tring Reservoirs	77	71	nc	nc	3	nc	4	8	149	101	77	79

PochardTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	37	78	36	18	12	6	10	16	5	13	22	35
Colne Valley:
Hampermill Lake	nc	nc	0	0	0	0	nc	nc	nc	0	0	0
Batchworth Lake	10	8	2	1	0	0	0	0	0	0	1	4
Stocker's and Bury Lakes	13	36	10	11	0	3	4	14	5	13	13	30
Maple Lodge	10	4	12	2	9	3	5	2	0	0	0	0
Lynsters Lake	2	1	2	1	0	0	0	0	0	0	0	0
Pynesfield North/South Lakes	2	25	8	2	0	0	0	0	0	0	3	0
Helicon Lake	0	3	0	0	0	0	0	0	0	0	0	1
Troy Mill Lake	0	1	2	1	3	0	1	0	0	0	5	0
Lea Valley:	194	177	116	31	28	33	7	42	105	131	107	104
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
King's Meads	21	13	13	7	3	0	0	0	0	0	0	0
Amwell GP - Ware / Thrift GP	5	13	4	0	nc	0	nc	2	9	20	11	nc
Amwell NR - others	54	20	11	5	8	23	7	34	33	22	30	50
Stanstead Abbotts Lakes - N lake	11	13	2	nc	nc	nc	nc	nc	38	34	9	9
Rye Meads	24	35	29	nc	nc	nc	nc	nc	0	6	10	12
Broxbourne GP	nc	0	nc	nc	0	0	nc	0	nc	0	0	nc
Cheshunt GPs:	79	83	57	19	17	10	0	6	25	49	47	33
Cheshunt GPs:
Herts:	30	35	15	0	4	4	0	1	0	4	15	12
Herts:
Bowyers Water	15	20	3	0	0	0	0	0	0	2	7	5
Cheshunt Lake	5	3	4	0	0	0	0	0	0	0	1	2
Northmet Lake	3	9	7	0	4	3	0	1	0	0	6	2
Slipe Lane Lake	1	0	0	0	0	0	0	0	0	0	0	0
Turnford Lakes	1	0	0	0	0	0	0	0	0	2	0	0
ex-Herts:	23	13	17	19	13	6	0	5	2	21	32	21
ex-Herts:
Friday Lake	3	1	3	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	2	1	1	nc	0	0	0	0	nc	3	5	6
Met Police Pit	7	1	0	0	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	11	10	13	19	13	6	nc	5	2	18	27	15
Essex:	26	35	25	0	0	0	0	0	23	24	0	0
Essex:
Hall Marsh Scrape	1	1	0	nc	0	0	0	0	nc	0	0	0
Holyfield Marsh Lake	25	34	25	nc	nc	nc	nc	nc	23	24	nc	nc
Radwell Mill	nc	0	0	0	0	0	nc	0	0	0	2	0
Brocket Park	0	1	nc	0	0	0	0	0	0	0	0	0
Panshanger Park	2	2	2	1	2	1	1	2	0	1	1	1
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	4	4	0
Hilfield Park Reservoir	21	23	5	0	0	27	118	74	nc	nc	nc	21
Tring Reservoirs	208	123	nc	nc	11	nc	9	23	99	69	113	93

Tufted DuckTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	288	423	324	219	159	164	121	126	129	185	398	404
Colne Valley:
Hampermill Lake	nc	nc	23	15	14	20	nc	nc	nc	3	0	0
Batchworth Lake	19	18	24	41	7	28	12	3	18	17	78	58
Stocker's and Bury Lakes	119	184	116	104	64	29	36	77	78	131	93	189
Maple Lodge	38	21	28	12	21	18	11	7	3	7	0	0
Lynsters Lake	68	99	5	4	15	5	18	7	12	4	90	66
Pynesfield North/South Lakes	32	40	50	11	3	14	23	0	10	13	29	22
Helicon Lake	10	27	24	19	16	3	0	0	3	5	18	25
Troy Mill Lake	2	34	54	13	19	47	21	32	5	5	90	44
Lea Valley:	1214	1169	1038	342	150	205	137	457	724	1139	1261	884
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
King's Meads	20	19	37	16	2	10	5	16	4	4	1	0
Amwell GP - Ware / Thrift GP	91	69	29	55	nc	34	nc	35	58	52	32	nc
Amwell NR - others	78	63	86	66	67	79	29	87	52	106	201	86
Stanstead Abbotts Lakes - N lake	75	81	90	nc	nc	nc	nc	nc	68	154	82	89
Rye Meads	116	102	107	nc	nc	nc	nc	nc	93	94	146	122
Broxbourne GP	nc	28	nc	nc	0	0	nc	98	nc	142	60	nc
Cheshunt GPs:	834	807	689	205	81	82	103	221	449	587	739	587
Cheshunt GPs:
Herts:	431	500	381	133	31	53	80	155	311	325	631	500
Herts:
Bowyers Water	34	58	43	56	15	16	3	5	23	41	43	65
Cheshunt Lake	37	35	43	0	2	0	0	0	0	1	22	41
Northmet Lake	110	72	45	50	12	13	23	94	117	81	67	96
Slipe Lane Lake	65	48	68	0	2	2	0	0	12	13	47	49
Turnford Lakes	21	59	27	0	0	0	0	0	4	20	44	33
ex-Herts:	243	183	207	72	50	27	23	66	33	117	104	84
ex-Herts:
Friday Lake	26	36	21	19	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	31	27	32	nc	4	6	23	14	nc	19	17	25
Met Police Pit	118	56	71	9	6	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	68	64	83	44	40	21	nc	52	33	98	87	59
Essex:	160	124	101	0	0	2	0	0	105	145	4	3
Essex:
Hall Marsh Scrape	2	2	3	nc	0	2	0	0	nc	0	4	3
Holyfield Marsh Lake	158	122	98	nc	nc	nc	nc	nc	105	145	nc	nc
Radwell Mill	nc	0	0	3	5	2	nc	0	0	0	0	0
Brocket Park	2	16	nc	0	3	5	3	1	0	0	0	0
Panshanger Park	46	76	62	65	52	54	20	44	16	18	5	0
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	18	15	29
Hilfield Park Reservoir	123	104	118	59	7	34	169	161	nc	nc	nc	150
Tring Reservoirs	169	175	nc	nc	135	nc	100	100	117	80	187	156

GoldeneyeTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	19	15	12	0	1	0	0	0	0	0	2	10
Colne Valley:
Hampermill Lake	nc	nc	0	0	0	0	nc	nc	nc	0	0	0
Batchworth Lake	0	0	0	0	0	0	0	0	0	0	0	0
Stocker's and Bury Lakes	19	15	12	0	0	0	0	0	0	0	2	10
Maple Lodge	0	0	0	0	0	0	0	0	0	0	0	0
Lynsters Lake	0	0	0	0	0	0	0	0	0	0	0	0
Pynesfield North/South Lakes	0	0	0	0	0	0	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	1	0	0	0	0	0	0	0
Lea Valley:	22	33	20	0	0	0	0	0	0	0	11	7
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
King's Meads	0	0	0	0	0	0	0	0	0	0	0	0
Amwell GP - Ware / Thrift GP	0	2	0	0	nc	0	nc	0	0	0	0	nc
Amwell NR - others	9	12	3	0	0	0	0	0	0	0	9	5
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
Broxbourne GP	nc	0	nc	nc	0	0	nc	0	nc	0	0	nc
Cheshunt GPs:	13	19	17	0	0	0	0	0	0	0	2	2
Cheshunt GPs:
Herts:	3	11	10	0	0	0	0	0	0	0	2	2
Herts:
Bowyers Water	1	2	3	0	0	0	0	0	0	0	2	2
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	1	5	6	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:	4	3	2	0	0	0	0	0	0	0	0	0
ex-Herts:
Friday Lake	4	3	2	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	nc	0	0	0	0	nc	0	0	0
Met Police Pit	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	0	0	0	0	0	0	nc	0	0	0	0	0
Essex:	6	5	5	0	0	0	0	0	0	0	0	0
Essex:
Hall Marsh Scrape	0	0	0	nc	0	0	0	0	nc	0	0	0
Holyfield Marsh Lake	6	5	5	nc	nc	nc	nc	nc	0	0	nc	nc
Radwell Mill	nc	0	0	0	0	0	nc	0	0	0	0	0
Brocket Park	0	0	nc	0	0	0	0	0	0	0	0	0
Panshanger Park	0	0	0	0	0	0	0	0	0	0	0	0
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Hilfield Park Reservoir	0	1	1	0	0	0	0	0	nc	nc	nc	0
Tring Reservoirs	8	6	nc	nc	0	nc	0	0	0	0	5	3

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
Colne Valley:
Hampermill Lake	nc	nc	0	0	0	0	nc	nc	nc	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	0	0	0	0	0	0	0	0	0	0	0	0
Lynsters Lake	0	0	0	0	0	0	0	0	0	0	0	0
Pynesfield North/South Lakes	0	0	0	0	0	0	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:	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
King's Meads	0	0	0	0	0	0	0	0	0	0	0	0
Amwell GP - Ware / Thrift GP	0	0	0	0	nc	0	nc	0	0	0	0	nc
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
Broxbourne GP	nc	0	nc	nc	0	0	nc	0	nc	0	0	nc
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	0	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	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	nc	0	0	0	0	nc	0	0	0
Met Police Pit	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	0	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	nc	0	0	0	0	nc	0	0	0
Holyfield Marsh Lake	0	0	0	nc	nc	nc	nc	nc	0	0	nc	nc
Radwell Mill	nc	0	0	0	0	0	nc	0	0	0	0	0
Brocket Park	0	0	nc	0	0	0	0	0	0	0	0	0
Panshanger Park	0	0	0	0	0	0	0	0	0	0	0	0
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	0	0
Hilfield Park Reservoir	4	1	0	0	0	0	0	0	nc	nc	nc	1
Tring Reservoirs	0	0	nc	nc	0	nc	0	0	0	0	0	0

Little GrebeTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	10	11	17	12	11	12	11	12	9	12	2	2
Colne Valley:
Hampermill Lake	nc	nc	0	0	0	0	nc	nc	nc	1	0	0
Batchworth Lake	0	0	0	0	0	0	0	0	0	1	0	2
Stocker's and Bury Lakes	0	0	2	0	0	0	0	0	0	0	0	0
Maple Lodge	8	9	13	12	11	12	11	12	9	10	2	0
Lynsters Lake	0	1	0	0	0	0	0	0	0	0	0	0
Pynesfield North/South Lakes	0	0	0	0	0	0	0	0	0	0	0	0
Helicon Lake	0	0	0	0	0	0	0	0	0	0	0	0
Troy Mill Lake	2	1	2	0	0	0	0	0	0	0	0	0
Lea Valley:	23	23	34	3	3	4	2	3	49	52	35	32
Lea Valley:
East Hyde	3	3	2	2	2	2	2	2	2	2	2	2
King's Meads	0	2	2	1	0	0	0	0	0	0	0	0
Amwell GP - Ware / Thrift GP	0	0	1	0	nc	0	nc	0	0	2	0	nc
Amwell NR - others	0	0	0	0	0	0	0	0	1	2	1	0
Stanstead Abbotts Lakes - N lake	1	0	1	nc	nc	nc	nc	nc	0	1	0	1
Rye Meads	8	13	20	nc	nc	nc	nc	nc	34	32	26	25
Broxbourne GP	nc	0	nc	nc	0	0	nc	0	nc	1	0	nc
Cheshunt GPs:	11	5	8	0	1	2	0	1	12	12	6	4
Cheshunt GPs:
Herts:	0	0	1	0	0	0	0	1	0	3	1	2
Herts:
Bowyers Water	0	0	0	0	0	0	0	1	0	3	1	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	0
Northmet Lake	0	0	1	0	0	0	0	0	0	0	0	2
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:	2	1	0	0	0	1	0	0	1	1	5	2
ex-Herts:
Friday Lake	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	0	0	0	nc	0	0	0	0	nc	0	0	0
Met Police Pit	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	2	1	0	0	0	1	nc	0	1	1	5	2
Essex:	9	4	7	0	1	1	0	0	11	8	0	0
Essex:
Hall Marsh Scrape	0	0	0	nc	1	1	0	0	nc	0	0	0
Holyfield Marsh Lake	9	4	7	nc	nc	nc	nc	nc	11	8	nc	nc
Radwell Mill	nc	0	0	0	0	0	nc	0	0	0	0	0
Brocket Park	5	4	nc	2	2	0	4	7	4	0	3	3
Panshanger Park	2	1	4	6	2	3	7	12	23	22	22	9
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	4	0
Hilfield Park Reservoir	10	11	11	14	6	5	13	9	nc	nc	nc	6
Tring Reservoirs	5	5	nc	nc	0	nc	0	0	0	5	1	5

Great Crested GrebeTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	22	37	63	67	60	65	62	73	60	91	82	33
Colne Valley:
Hampermill Lake	nc	nc	28	24	21	24	nc	nc	nc	27	25	11
Batchworth Lake	2	4	6	5	5	5	8	6	3	5	3	1
Stocker's and Bury Lakes	7	7	12	15	11	20	30	33	33	31	29	12
Maple Lodge	0	0	0	0	0	0	0	0	0	0	0	0
Lynsters Lake	2	5	2	4	6	6	4	7	4	5	8	0
Pynesfield North/South Lakes	5	8	6	8	6	2	4	4	6	7	11	1
Helicon Lake	2	1	2	4	4	0	4	4	3	4	0	2
Troy Mill Lake	4	12	7	7	7	8	12	19	11	12	6	6
Lea Valley:	35	56	93	50	48	48	32	86	90	63	39	34
Lea Valley:
East Hyde	0	0	0	0	0	0	0	0	0	0	0	0
King's Meads	0	0	0	0	0	0	0	0	0	0	0	0
Amwell GP - Ware / Thrift GP	0	3	4	2	nc	4	nc	4	2	1	3	nc
Amwell NR - others	3	3	4	10	4	7	5	13	14	11	9	10
Stanstead Abbotts Lakes - N lake	0	1	9	nc	nc	nc	nc	nc	12	3	2	2
Rye Meads	0	0	0	nc	nc	nc	nc	nc	3	0	0	0
Broxbourne GP	nc	3	nc	nc	10	9	nc	7	nc	5	2	nc
Cheshunt GPs:	32	46	76	38	34	28	27	62	59	43	23	22
Cheshunt GPs:
Herts:	2	10	31	17	18	18	26	37	27	16	15	9
Herts:
Bowyers Water	1	2	4	5	4	4	8	8	2	0	1	1
Cheshunt Lake	0	0	0	1	2	2	0	0	0	0	1	0
Northmet Lake	1	4	14	5	6	5	10	9	9	8	5	4
Slipe Lane Lake	0	0	0	0	2	2	2	1	1	1	1	1
Turnford Lakes	0	1	1	1	0	1	1	3	2	1	1	0
ex-Herts:	16	19	22	21	16	10	1	25	9	13	8	13
ex-Herts:
Friday Lake	1	2	1	3	3	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	4	5	4	nc	3	4	1	5	nc	6	2	2
Met Police Pit	1	0	2	8	2	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	10	12	15	10	8	6	nc	20	9	7	6	11
Essex:	14	17	23	0	0	0	0	0	23	14	0	0
Essex:
Hall Marsh Scrape	0	0	0	nc	0	0	0	0	nc	0	0	0
Holyfield Marsh Lake	14	17	23	nc	nc	nc	nc	nc	23	14	nc	nc
Radwell Mill	nc	0	0	0	0	0	nc	0	0	0	0	0
Brocket Park	1	2	nc	2	2	2	2	2	4	0	0	0
Panshanger Park	3	3	7	5	8	12	9	11	8	6	1	0
Fairlands Valley Park	0	0	nc	0	0	0	0	0	0	0	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	9	0	3
Hilfield Park Reservoir	2	1	4	12	7	17	18	52	nc	nc	nc	76
Tring Reservoirs	18	19	nc	nc	31	nc	49	25	35	28	29	25

CormorantTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	51	32	32	22	16	24	31	25	21	21	48	37
Colne Valley:
Hampermill Lake	nc	nc	0	9	1	0	nc	nc	nc	2	1	2
Batchworth Lake	3	0	0	1	2	3	1	1	5	2	6	1
Stocker's and Bury Lakes	35	22	19	4	6	5	14	18	9	11	33	29
Maple Lodge	2	0	6	3	3	6	1	1	1	0	0	0
Lynsters Lake	0	1	0	2	1	0	1	0	0	0	2	0
Pynesfield North/South Lakes	3	1	3	1	0	0	0	0	0	0	0	2
Helicon Lake	1	1	2	0	1	0	0	1	0	2	3	1
Troy Mill Lake	7	7	2	2	2	10	14	4	6	4	3	2
Lea Valley:	125	65	52	36	36	60	33	65	78	138	161	94
Lea Valley:
East Hyde	2	2	2	3	1	10	0	1	2	2	2	8
King's Meads	1	0	3	0	0	2	5	2	3	11	2	2
Amwell GP - Ware / Thrift GP	0	2	0	0	nc	0	nc	0	0	0	0	nc
Amwell NR - others	13	17	16	16	16	31	21	23	25	47	56	11
Stanstead Abbotts Lakes - N lake	9	8	3	nc	nc	nc	nc	nc	2	3	3	7
Rye Meads	5	4	1	nc	nc	nc	nc	nc	11	6	25	5
Broxbourne GP	nc	0	nc	nc	3	3	nc	3	nc	1	2	nc
Cheshunt GPs:	95	32	27	17	16	14	7	36	35	68	71	61
Cheshunt GPs:
Herts:	47	15	6	3	5	3	5	14	7	12	28	40
Herts:
Bowyers Water	5	2	0	1	0	0	2	1	0	2	1	4
Cheshunt Lake	1	4	2	0	0	1	0	0	0	0	5	3
Northmet Lake	1	0	0	0	0	1	1	9	3	1	10	7
Slipe Lane Lake	14	3	3	1	1	1	1	0	2	2	1	8
Turnford Lakes	5	1	0	0	3	0	0	0	0	1	0	2
ex-Herts:	48	17	21	14	11	11	2	22	8	22	43	21
ex-Herts:
Friday Lake	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	7	7	10	nc	5	7	2	9	nc	9	9	13
Met Police Pit	3	3	0	3	3	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	38	7	11	11	3	4	nc	13	8	13	34	8
Essex:	0	0	0	0	0	0	0	0	20	34	0	0
Essex:
Hall Marsh Scrape	0	0	0	nc	0	0	0	0	nc	0	0	0
Holyfield Marsh Lake	0	0	0	nc	nc	nc	nc	nc	20	34	nc	nc
Radwell Mill	nc	0	0	0	0	0	nc	0	0	0	1	0
Brocket Park	15	10	nc	2	1	1	1	4	7	7	8	7
Panshanger Park	4	4	6	3	0	3	3	3	5	5	3	4
Fairlands Valley Park	0	0	nc	0	0	0	0	2	1	2	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	3	2	7
Hilfield Park Reservoir	2	4	2	2	0	1	1	6	nc	nc	nc	15
Tring Reservoirs	40	28	nc	nc	29	nc	22	22	21	34	23	17

Grey HeronTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	27	43	47	21	20	21	24	16	10	13	14	16
Colne Valley:
Hampermill Lake	nc	nc	1	2	6	4	nc	nc	nc	5	6	4
Batchworth Lake	2	0	0	0	2	2	3	0	0	0	1	0
Stocker's and Bury Lakes	21	39	40	16	9	10	8	6	6	6	2	6
Maple Lodge	0	0	0	1	2	3	3	6	1	2	3	0
Lynsters Lake	1	0	0	0	0	0	1	1	0	0	0	1
Pynesfield North/South Lakes	1	0	1	0	0	0	2	0	0	0	0	0
Helicon Lake	0	1	3	0	0	0	0	1	0	0	1	1
Troy Mill Lake	2	3	2	2	1	2	7	2	3	0	1	4
Lea Valley:	12	22	22	16	12	23	14	25	21	28	14	20
Lea Valley:
East Hyde	1	2	2	1	0	2	4	2	2	2	2	4
King's Meads	0	0	2	0	1	3	1	0	0	2	0	1
Amwell GP - Ware / Thrift GP	0	0	0	1	nc	0	nc	0	0	0	0	nc
Amwell NR - others	1	15	10	11	9	12	7	14	5	5	2	4
Stanstead Abbotts Lakes - N lake	1	0	0	nc	nc	nc	nc	nc	1	1	0	1
Rye Meads	3	2	4	nc	nc	nc	nc	nc	8	11	3	4
Broxbourne GP	nc	0	nc	nc	0	0	nc	0	nc	0	0	nc
Cheshunt GPs:	6	3	4	3	2	6	2	9	5	7	7	6
Cheshunt GPs:
Herts:	1	0	2	1	1	3	2	5	1	3	4	3
Herts:
Bowyers Water	1	0	1	0	0	1	1	1	0	0	0	0
Cheshunt Lake	0	0	0	0	0	0	0	0	0	0	0	1
Northmet Lake	0	0	1	0	0	1	0	4	1	2	4	1
Slipe Lane Lake	0	0	0	0	1	0	0	0	0	0	0	0
Turnford Lakes	0	0	0	1	0	1	1	0	0	0	0	0
ex-Herts:	5	3	2	2	0	1	0	3	4	3	3	3
ex-Herts:
Friday Lake	0	0	0	0	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	3	1	1	nc	0	1	0	2	nc	1	1	1
Met Police Pit	0	0	1	0	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	2	2	0	2	0	0	nc	1	4	2	2	2
Essex:	0	0	0	0	1	2	0	1	0	1	0	0
Essex:
Hall Marsh Scrape	0	0	0	nc	1	2	0	1	nc	0	0	0
Holyfield Marsh Lake	0	0	0	nc	nc	nc	nc	nc	0	1	nc	nc
Radwell Mill	nc	0	0	1	0	0	nc	0	2	1	2	0
Brocket Park	2	1	nc	1	3	1	1	1	2	0	1	1
Panshanger Park	2	2	2	2	4	2	4	3	2	2	1	3
Fairlands Valley Park	0	0	nc	0	1	1	1	0	0	1	0	0
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	0	1	1
Hilfield Park Reservoir	0	0	0	0	2	0	0	4	nc	nc	nc	3
Tring Reservoirs	8	0	nc	nc	21	nc	8	18	13	12	7	8

MoorhenTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	35	37	69	36	32	28	19	31	39	55	61	52
Colne Valley:
Hampermill Lake	nc	nc	32	13	16	10	nc	nc	nc	20	17	27
Batchworth Lake	5	12	7	8	4	4	3	4	8	8	8	11
Stocker's and Bury Lakes	14	12	7	2	2	2	1	4	8	9	15	2
Maple Lodge	6	8	10	8	6	5	8	10	13	11	10	4
Lynsters Lake	6	2	3	0	0	0	0	1	0	0	1	1
Pynesfield North/South Lakes	0	0	3	0	0	0	0	2	0	2	4	0
Helicon Lake	2	2	2	3	3	5	2	1	0	0	2	4
Troy Mill Lake	2	1	5	2	1	2	5	9	10	5	4	3
Lea Valley:	146	151	153	63	41	53	49	80	181	181	169	156
Lea Valley:
East Hyde	47	22	12	8	10	10	10	10	10	12	12	15
King's Meads	17	30	24	18	16	19	20	17	31	39	26	26
Amwell GP - Ware / Thrift GP	1	1	2	1	nc	1	nc	2	0	2	2	nc
Amwell NR - others	14	11	15	15	2	10	6	27	22	22	23	13
Stanstead Abbotts Lakes - N lake	5	9	8	nc	nc	nc	nc	nc	8	10	5	6
Rye Meads	23	45	45	nc	nc	nc	nc	nc	80	52	66	41
Broxbourne GP	nc	0	nc	nc	0	0	nc	3	nc	11	8	nc
Cheshunt GPs:	39	33	47	21	13	13	13	21	30	33	27	55
Cheshunt GPs:
Herts:	21	16	23	7	6	8	5	8	21	21	16	33
Herts:
Bowyers Water	5	3	2	2	0	0	1	4	10	12	5	7
Cheshunt Lake	8	6	2	2	4	2	1	1	1	2	2	13
Northmet Lake	1	1	5	2	2	2	2	2	1	1	6	1
Slipe Lane Lake	2	1	4	0	0	3	1	0	1	0	1	1
Turnford Lakes	3	3	1	1	0	0	0	0	5	1	2	2
ex-Herts:	11	13	11	14	3	1	0	6	9	12	10	10
ex-Herts:
Friday Lake	0	0	0	2	0	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	1	1	3	nc	0	0	0	1	nc	2	1	3
Met Police Pit	1	1	2	2	0	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	9	11	6	10	3	1	nc	5	9	10	9	7
Essex:	7	4	13	0	4	4	8	7	0	0	1	12
Essex:
Hall Marsh Scrape	7	4	13	nc	4	4	8	7	nc	0	1	12
Holyfield Marsh Lake	0	0	0	nc	nc	nc	nc	nc	Present	Present	nc	nc
Radwell Mill	nc	2	2	1	2	1	nc	0	1	2	1	1
Brocket Park	11	17	nc	7	6	7	11	11	14	21	9	14
Panshanger Park	3	8	12	11	8	12	21	14	14	8	8	4
Fairlands Valley Park	9	18	nc	11	8	14	12	13	28	27	27	39
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	23	17	16
Hilfield Park Reservoir	1	1	3	5	1	1	1	7	nc	nc	nc	7
Tring Reservoirs	18	12	nc	nc	17	nc	31	55	95	88	27	19

CootTop of page

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Colne Valley:	1319	938	794	449	378	435	552	419	961	893	953	1038
Colne Valley:
Hampermill Lake	nc	nc	55	53	34	49	nc	nc	nc	24	31	31
Batchworth Lake	54	64	61	46	43	56	63	136	151	170	128	132
Stocker's and Bury Lakes	350	210	192	98	73	110	148	71	165	146	201	172
Maple Lodge	37	39	43	52	43	37	33	15	8	11	3	1
Lynsters Lake	177	112	53	35	19	24	30	15	151	122	163	199
Pynesfield North/South Lakes	173	149	120	36	32	43	48	63	80	63	76	102
Helicon Lake	117	64	48	23	15	15	28	12	69	41	126	106
Troy Mill Lake	411	300	222	106	119	101	202	107	337	316	225	295
Lea Valley:	2969	2660	1790	522	559	693	746	1300	2701	3106	2119	2317
Lea Valley:
East Hyde	7	7	8	8	12	12	10	10	11	13	13	14
King's Meads	52	91	61	52	48	58	22	43	30	34	17	14
Amwell GP - Ware / Thrift GP	68	57	47	34	nc	25	nc	45	39	39	16	nc
Amwell NR - others	539	417	230	89	82	130	200	470	403	523	621	691
Stanstead Abbotts Lakes - N lake	167	106	63	nc	nc	nc	nc	nc	142	123	75	187
Rye Meads	279	230	174	nc	nc	nc	nc	nc	582	485	295	243
Broxbourne GP	nc	188	nc	nc	32	42	nc	71	nc	128	113	nc
Cheshunt GPs:	1857	1564	1207	339	385	426	514	661	1494	1761	969	1168
Cheshunt GPs:
Herts:	1022	846	592	213	174	265	465	553	661	621	714	837
Herts:
Bowyers Water	394	112	60	38	33	67	114	230	370	294	308	315
Cheshunt Lake	17	43	33	8	4	8	8	1	9	2	3	32
Northmet Lake	194	128	130	35	52	76	147	96	106	122	143	132
Slipe Lane Lake	56	107	39	18	17	11	31	24	21	33	57	74
Turnford Lakes	66	63	65	26	12	14	27	18	33	15	18	38
ex-Herts:	555	460	436	126	204	150	47	105	143	243	241	325
ex-Herts:
Friday Lake	12	27	35	19	6	nc	nc	nc	nc	nc	nc	nc
Hooks Marsh GP	72	98	65	nc	18	40	47	21	nc	72	63	102
Met Police Pit	133	113	133	107	63	nc	nc	nc	nc	nc	nc	nc
Seventy Acres Lake	338	222	203	0	117	110	nc	84	143	171	178	223
Essex:	280	258	179	0	7	11	2	3	690	897	14	6
Essex:
Hall Marsh Scrape	10	13	21	nc	7	11	2	3	nc	7	14	6
Holyfield Marsh Lake	270	245	158	nc	nc	nc	nc	nc	690	890	nc	nc
Radwell Mill	nc	6	4	5	4	2	nc	7	9	5	6	9
Brocket Park	80	79	nc	28	32	36	47	63	39	64	32	80
Panshanger Park	150	154	153	102	88	82	104	132	144	80	82	86
Fairlands Valley Park	12	12	nc	5	8	8	12	14	7	9	8	12
Aldenham Reservoir	nc	nc	nc	nc	nc	nc	nc	nc	nc	305	152	158
Hilfield Park Reservoir	231	136	81	90	62	111	138	187	nc	nc	nc	309
Tring Reservoirs	772	543	nc	nc	282	nc	693	774	1047	1094	977	911