Also present

Totals Aetsveldsche polder, Nigtevecht 2025

	Species	Jan	Feb	Mar	Apr	May	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Canada Goose	9	0	11	4	2	26	7	19	9 ( 9 Mar)	23	7	2 Jan	9 May
2.	Barnacle Goose	2107	1531	1909	182	118	5847	3620	2227	1250 (20 Mar)	74	23	2 Jan	10 May
3.	Greylag Goose	238	304	384	333	543	1802	562	1240	304 ( 9 May)	94	29	2 Jan	10 May
4.	goose sp.	0	286	0	0	11	297	231	66	151 (14 Feb)	10	3	14 Feb	3 May
5.	Domestic Goose	0	0	0	1	1	2	2	0	1 ( 3 Apr)	6	2	3 Apr	9 May
6.	Feral Mallard	0	0	1	0	0	1	0	1	1 (10 Mar)	3	1	10 Mar	10 Mar
7.	Pink-footed Goose	4	0	1	0	0	5	4	1	4 ( 2 Jan)	6	2	2 Jan	9 Mar
8.	Tundra Bean Goose	70	21	0	0	0	91	91	0	67 ( 2 Jan)	13	4	2 Jan	15 Feb
9.	Eurasian White-fronted Goose	7208	10888	2540	14	0	20650	15407	5243	5015 (26 Jan)	58	18	2 Jan	5 Apr
10.	Mute Swan	15	22	9	19	81	146	33	113	65 ( 3 May)	74	23	2 Jan	10 May
11.	Whooper Swan	0	3	0	0	0	3	0	3	3 (25 Feb)	3	1	25 Feb	25 Feb
12.	Egyptian Goose	12	54	108	174	26	374	165	209	48 ( 4 Apr)	77	24	2 Jan	10 May
13.	Shelduck	0	9	15	57	3	84	28	56	18 ( 7 Apr)	61	19	6 Feb	9 May
14.	Shoveler	0	0	6	2	0	8	0	8	4 (22 Mar)	10	3	19 Mar	7 Apr
15.	Gadwall	4	87	37	28	2	158	13	145	59 (21 Feb)	58	18	26 Jan	3 May
16.	Wigeon	370	301	6338	77	0	7086	90	6996	4854 ( 8 Mar)	39	12	26 Jan	4 Apr
17.	Mallard	3	7	16	29	4	59	16	43	9 ( 4 Apr)	65	20	2 Jan	10 May
18.	Pintail	0	0	11	3	0	14	0	14	11 (22 Mar)	10	3	22 Mar	7 Apr
19.	Garganey/Teal	0	0	1	0	0	1	0	1	1 ( 8 Mar)	3	1	8 Mar	8 Mar
20.	Red-crested Pochard	0	0	0	1	0	1	1	0	1 ( 7 Apr)	3	1	7 Apr	7 Apr
21.	Tufted Duck	0	1	0	9	1	11	9	2	4 ( 5 Apr)	16	5	21 Feb	3 May
22.	Goosander	1	0	1	0	0	2	2	0	1 ( 2 Jan)	6	2	2 Jan	8 Mar
23.	Red-breasted Merganser	0	2	0	0	0	2	0	2	2 (21 Feb)	3	1	21 Feb	21 Feb
24.	Swift	0	0	0	13	16	29	0	29	15 ( 3 May)	13	4	12 Apr	10 May
25.	Feral Pigeon	19	1	30	35	0	85	31	54	21 (12 Apr)	35	11	26 Jan	21 Apr
26.	Stock Dove	10	17	14	27	2	70	33	37	11 (21 Feb)	61	19	2 Jan	3 May
27.	Woodpigeon	180	161	388	117	9	855	247	608	110 (21 Mar)	94	29	2 Jan	9 May
28.	Coot	0	0	0	0	1	1	0	1	1 ( 3 May)	3	1	3 May	3 May
29.	Great Crested Grebe	0	0	0	0	3	3	0	3	2 ( 3 May)	6	2	3 May	9 May
30.	Oystercatcher	1	13	31	23	4	72	22	50	10 ( 5 Apr)	65	20	26 Jan	3 May
	Species	Jan	Feb	Mar	Apr	May	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Golden Plover	39	447	184	30	0	700	95	605	359 (21 Feb)	52	16	26 Jan	12 Apr
32.	Ringed Plover	0	0	0	1	0	1	0	1	1 ( 4 Apr)	3	1	4 Apr	4 Apr
33.	Little Ringed Plover	0	0	2	0	0	2	2	0	2 (20 Mar)	3	1	20 Mar	20 Mar
34.	Lapwing	275	2246	173	31	3	2728	423	2305	2037 (21 Feb)	77	24	2 Jan	10 May
35.	Whimbrel	0	0	0	124	0	124	18	106	38 ( 5 Apr)	29	9	4 Apr	23 Apr
36.	Curlew	0	5	7	3	1	16	3	13	4 (21 Feb)	23	7	21 Feb	3 May
37.	Black-tailed Godwit	0	4	92	77	2	175	21	154	34 (21 Mar)	55	17	21 Feb	9 May
38.	Snipe	0	9	25	1	0	35	1	34	19 (22 Mar)	13	4	21 Feb	12 Apr
39.	Common Sandpiper	0	0	0	0	1	1	0	1	1 ( 3 May)	3	1	3 May	3 May
40.	Green Sandpiper	0	2	6	66	0	74	1	73	32 ( 7 Apr)	35	11	21 Feb	15 Apr
41.	Wood Sandpiper	0	0	0	0	6	6	0	6	6 ( 3 May)	3	1	3 May	3 May
42.	Redshank	0	0	24	15	0	39	11	28	6 ( 5 Apr)	35	11	8 Mar	23 Apr
43.	Greenshank	0	0	0	1	0	1	0	1	1 (15 Apr)	3	1	15 Apr	15 Apr
44.	Ruff	0	0	7	4	0	11	0	11	5 ( 8 Mar)	10	3	8 Mar	5 Apr
45.	wader sp.	0	0	3	2	12	17	0	17	12 ( 3 May)	10	3	8 Mar	3 May
46.	Black Tern	0	0	0	14	0	14	14	0	14 (15 Apr)	3	1	15 Apr	15 Apr
47.	Little Gull	0	0	0	1	0	1	1	0	1 (15 Apr)	3	1	15 Apr	15 Apr
48.	Black-headed Gull	16	202	414	243	20	895	120	775	169 (21 Feb)	94	29	2 Jan	10 May
49.	Mediterranean Gull	0	2	6	32	0	40	21	19	10 (12 Apr)	35	11	21 Feb	23 Apr
50.	Common Gull	64	58	149	20	0	291	111	180	38 ( 2 Jan)	71	22	2 Jan	15 Apr
51.	Caspian Gull	6	12	16	5	1	40	30	10	8 ( 8 Mar)	55	17	2 Jan	3 May
52.	Herring Gull	6	4	4	4	2	20	10	10	4 (26 Jan)	39	12	26 Jan	3 May
53.	Great Black-backed Gull	3	3	1	0	0	7	3	4	2 (31 Jan)	19	6	26 Jan	10 Mar
54.	Lesser Black-backed Gull	0	5	101	156	17	279	31	248	44 ( 7 Apr)	77	24	21 Feb	10 May
55.	White Stork	0	11	11	16	3	41	7	34	11 (21 Feb)	42	13	21 Feb	3 May
56.	Cormorant	16	87	785	477	13	1378	108	1270	216 (21 Mar)	87	27	2 Jan	10 May
57.	Spoonbill	0	3	11	46	6	66	8	58	21 ( 4 Apr)	39	12	21 Feb	9 May
58.	Little Egret	0	0	0	2	0	2	0	2	2 ( 4 Apr)	3	1	4 Apr	4 Apr
59.	Great White Egret	0	4	17	21	2	44	11	33	10 ( 4 Apr)	58	18	6 Feb	3 May
60.	Grey Heron	0	2	23	44	4	73	3	70	33 ( 4 Apr)	42	13	25 Feb	9 May
	Species	Jan	Feb	Mar	Apr	May	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Purple Heron	0	0	0	13	4	17	3	14	4 (12 Apr)	19	6	5 Apr	3 May
62.	Sparrowhawk	1	4	25	26	2	58	1	57	7 ( 8 Mar)	52	16	26 Jan	3 May
63.	Goshawk	0	1	2	1	0	4	0	4	1 (21 Feb)	13	4	21 Feb	21 Apr
64.	Marsh Harrier	0	0	16	30	2	48	1	47	8 ( 4 Apr)	39	12	19 Mar	3 May
65.	Hen Harrier	0	1	1	0	0	2	1	1	1 (14 Feb)	6	2	14 Feb	20 Mar
66.	Pallid Harrier	0	0	0	1	0	1	0	1	1 ( 7 Apr)	3	1	7 Apr	7 Apr
67.	Black Kite	0	0	0	1	0	1	0	1	1 ( 4 Apr)	3	1	4 Apr	4 Apr
68.	White-tailed Eagle	1	2	7	5	1	16	5	11	3 ( 8 Mar)	32	10	2 Jan	3 May
69.	Common Buzzard	1	2	22	14	1	40	0	40	9 ( 8 Mar)	35	11	2 Jan	3 May
70.	Kingfisher	0	0	1	0	0	1	0	1	1 (20 Mar)	3	1	20 Mar	20 Mar
71.	Great Spotted Woodpecker	0	1	2	1	0	4	0	4	2 (22 Mar)	10	3	21 Feb	7 Apr
72.	Green Woodpecker	0	0	1	1	0	2	0	2	1 (21 Mar)	6	2	21 Mar	4 Apr
73.	Kestrel	0	0	4	9	1	14	1	13	5 ( 4 Apr)	23	7	22 Mar	10 May
74.	falcon sp.	0	0	0	1	0	1	0	1	1 (21 Apr)	3	1	21 Apr	21 Apr
75.	Merlin	0	1	1	3	0	5	1	4	2 ( 4 Apr)	13	4	21 Feb	12 Apr
76.	Peregrine	0	1	5	5	0	11	4	7	3 (21 Mar)	29	9	21 Feb	21 Apr
77.	Alexandrine Parakeet	0	0	1	0	0	1	1	0	1 (21 Mar)	3	1	21 Mar	21 Mar
78.	Rose-ringed Parakeet	32	28	60	78	10	208	184	24	24 ( 9 Mar)	77	24	26 Jan	10 May
79.	Jay	0	0	0	2	0	2	0	2	1 ( 8 Apr)	6	2	8 Apr	12 Apr
80.	Magpie	0	0	7	0	0	7	0	7	3 (10 Mar)	13	4	9 Mar	28 Mar
81.	Jackdaw	26	106	332	226	83	773	537	236	73 ( 9 Mar)	97	30	2 Jan	10 May
82.	Rook	1	1	3	23	2	30	11	19	6 (12 Apr)	42	13	2 Jan	10 May
83.	Carrion Crow	0	0	1	0	2	3	0	3	2 ( 9 May)	6	2	20 Mar	9 May
84.	Raven	0	0	0	5	0	5	1	4	3 ( 5 Apr)	10	3	4 Apr	7 Apr
85.	Blue Tit	0	2	9	4	0	15	0	15	2 (21 Feb)	29	9	21 Feb	7 Apr
86.	Great Tit	0	3	16	5	2	26	3	23	3 ( 9 Mar)	45	14	15 Feb	3 May
87.	Wood Lark	0	0	3	0	0	3	0	3	3 (20 Mar)	3	1	20 Mar	20 Mar
88.	Skylark	0	27	88	4	0	119	0	119	30 ( 8 Mar)	42	13	14 Feb	12 Apr
89.	Sand Martin	0	0	1	23	3	27	0	27	7 (15 Apr)	23	7	8 Mar	9 May
90.	Swallow	0	0	1	99	23	123	13	110	35 (12 Apr)	45	14	22 Mar	10 May
	Species	Jan	Feb	Mar	Apr	May	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	House Martin	0	0	0	2	0	2	0	2	1 ( 4 Apr)	6	2	4 Apr	15 Apr
92.	Chiffchaff	0	0	2	1	0	3	0	3	1 (21 Mar)	10	3	21 Mar	4 Apr
93.	Starling	1527	3224	1529	70	58	6408	3773	2635	1256 (14 Feb)	84	26	2 Jan	3 May
94.	Song Thrush	1	0	1	82	0	84	3	81	27 (12 Apr)	29	9	31 Jan	15 Apr
95.	Mistle Thrush	0	0	11	13	0	24	0	24	9 (21 Mar)	23	7	21 Mar	12 Apr
96.	Redwing	0	0	1017	96	0	1113	8	1105	920 (22 Mar)	26	8	9 Mar	12 Apr
97.	Blackbird	0	0	1	0	0	1	1	0	1 (21 Mar)	3	1	21 Mar	21 Mar
98.	Fieldfare	11	1	8	87	0	107	1	106	42 ( 4 Apr)	35	11	26 Jan	15 Apr
99.	Ring Ouzel	0	0	0	2	0	2	0	2	1 ( 4 Apr)	6	2	4 Apr	5 Apr
100.	thrush sp.	0	1	1	3	0	5	1	4	2 ( 3 Apr)	13	4	6 Feb	5 Apr
101.	Robin	0	0	0	1	0	1	0	1	1 ( 4 Apr)	3	1	4 Apr	4 Apr
102.	Black Redstart	0	0	3	0	0	3	0	3	2 (22 Mar)	6	2	21 Mar	22 Mar
103.	Whinchat	0	0	0	1	0	1	0	1	1 (21 Apr)	3	1	21 Apr	21 Apr
104.	Stonechat	0	0	1	0	0	1	0	1	1 (22 Mar)	3	1	22 Mar	22 Mar
105.	Wheatear	0	0	0	2	0	2	0	2	2 ( 4 Apr)	3	1	4 Apr	4 Apr
106.	Tree Sparrow	0	1	0	0	0	1	0	1	1 (21 Feb)	3	1	21 Feb	21 Feb
107.	House Sparrow	0	2	0	1	0	3	0	3	2 (25 Feb)	6	2	25 Feb	8 Apr
108.	Dunnock	0	0	0	1	0	1	0	1	1 ( 8 Apr)	3	1	8 Apr	8 Apr
109.	Blue-headed Wagtail	0	0	1	66	0	67	1	66	16 (15 Apr)	35	11	22 Mar	23 Apr
110.	Grey Wagtail	0	0	8	1	0	9	3	6	2 ( 9 Mar)	23	7	8 Mar	7 Apr
111.	White Wagtail	2	8	121	58	0	189	14	175	48 (22 Mar)	71	22	26 Jan	23 Apr
112.	Pied Wagtail	0	0	1	1	0	2	0	2	1 (21 Mar)	6	2	21 Mar	7 Apr
113.	Meadow Pipit	1	23	82	2310	5	2421	9	2412	655 ( 5 Apr)	74	23	26 Jan	9 May
114.	Tree Pipit	0	0	0	4	2	6	0	6	3 (15 Apr)	13	4	12 Apr	9 May
115.	Water Pipit	0	0	1	0	0	1	0	1	1 (22 Mar)	3	1	22 Mar	22 Mar
116.	Chaffinch	2	16	301	22	0	341	18	323	100 (21 Mar)	71	22	26 Jan	12 Apr
117.	Brambling	0	0	0	1	0	1	0	1	1 ( 8 Apr)	3	1	8 Apr	8 Apr
118.	Chaffinch/Brambling	0	0	1	0	0	1	0	1	1 ( 9 Mar)	3	1	9 Mar	9 Mar
119.	Greenfinch	0	2	17	28	2	49	12	37	13 ( 8 Apr)	45	14	21 Feb	3 May
120.	Linnet	0	0	5	43	1	49	1	48	12 (15 Apr)	29	9	21 Mar	3 May
	Species	Jan	Feb	Mar	Apr	May	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Goldfinch	2	12	10	31	5	60	13	47	9 (21 Feb)	61	19	2 Jan	9 May
122.	Siskin	0	0	0	1	0	1	0	1	1 (12 Apr)	3	1	12 Apr	12 Apr
123.	Reed Bunting	0	0	18	1	0	19	1	18	6 ( 9 Mar)	19	6	8 Mar	4 Apr
124.	passerine sp.	0	0	0	1	0	1	0	1	1 ( 8 Apr)	3	1	8 Apr	8 Apr
	Other species
	Species	Jan	Feb	Mar	Apr	May	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Small Tortoiseshell	0	0	3	0	0	3	0	3	2 ( 8 Mar)	6	2	8 Mar	21 Mar
2.	Brimstone	0	0	0	2	0	2	0	2	1 (12 Apr)	6	2	12 Apr	15 Apr
3.	European Peacock	0	1	8	12	0	21	2	19	6 (22 Mar)	26	8	21 Feb	15 Apr
4.	Speckled Wood	0	0	0	1	0	1	0	1	1 (15 Apr)	3	1	15 Apr	15 Apr
5.	Green-veined White	0	0	0	8	0	8	0	8	3 ( 4 Apr)	10	3	4 Apr	12 Apr
6.	Comma	0	0	0	1	0	1	0	1	1 (12 Apr)	3	1	12 Apr	12 Apr
7.	Red Admiral	0	0	2	0	0	2	1	1	2 ( 8 Mar)	3	1	8 Mar	8 Mar
	Other species
	Species	Jan	Feb	Mar	Apr	May	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Bumblebee sp.	0	1	8	8	0	17	2	15	5 (22 Mar)	32	10	21 Feb	23 Apr
	Species	Jan	Feb	Mar	Apr	May	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	12284	20286	17682	6126	1129	57507	26298	31209		100	31
	Observation hours	7:30	18:45	35:10	38:50	7:30	107:45

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Totals Aetsveldsche polder, Nigtevecht 2025