Also present

Totals Aetsveldsche polder, Nigtevecht 2018

	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	1	0	0	0	0	0	0	0	0	1	1	0	1 (20 Apr)	2	1	20 Apr	20 Apr
2.	Canada Goose	0	9	26	0	0	2	29	0	0	66	31	35	26 (16 Jun)	13	6	11 May	25 Oct
3.	Barnacle Goose	0	198	1	0	0	4	154	288	1	646	429	217	145 (17 Nov)	35	16	12 May	10 Dec
4.	Greylag Goose	0	1699	287	123	1422	1508	2064	627	25	7755	4366	3389	839 (29 Aug)	85	39	6 May	10 Dec
5.	goose sp.	0	0	0	0	0	0	256	0	0	256	256	0	256 (27 Oct)	2	1	27 Oct	27 Oct
6.	Domestic Goose	0	3	0	0	0	1	1	0	0	5	2	3	2 (20 May)	9	4	20 May	12 Oct
7.	Pink-footed Goose	0	0	0	0	0	0	0	6	4	10	6	4	4 (15 Nov)	7	3	15 Nov	10 Dec
8.	Tundra Bean Goose	0	0	0	0	0	13	0	23	4	40	36	4	15 (15 Nov)	9	4	29 Sep	10 Dec
9.	Eurasian White-fronted Goose	0	0	0	0	0	0	1156	1730	2445	5331	5237	94	2445 (10 Dec)	39	18	11 Oct	10 Dec
10.	Mute Swan	0	65	9	2	13	16	20	11	8	144	70	74	23 (12 May)	57	26	6 May	10 Dec
11.	Bewick's Swan	0	0	0	0	0	0	0	0	4	4	4	0	4 (10 Dec)	2	1	10 Dec	10 Dec
12.	Whooper Swan	0	0	0	0	0	0	0	7	0	7	7	0	7 (22 Nov)	2	1	22 Nov	22 Nov
13.	Egyptian Goose	0	5	18	27	22	74	77	16	1	240	166	74	35 ( 2 Sep)	54	25	12 May	10 Dec
14.	Shelduck	0	19	0	0	0	0	5	0	2	26	11	15	4 ( 9 May)	20	9	9 May	10 Dec
15.	Ruddy Shelduck	0	0	4	0	0	0	0	0	0	4	4	0	4 (21 Jun)	2	1	21 Jun	21 Jun
16.	Shoveler	0	0	0	0	0	4	0	0	5	9	9	0	5 (10 Dec)	4	2	15 Sep	10 Dec
17.	Gadwall	0	3	24	34	29	92	105	64	8	359	323	36	50 (15 Nov)	54	25	6 May	10 Dec
18.	Wigeon	0	0	0	0	0	6	3583	220	0	3809	3739	70	3040 (13 Oct)	22	10	29 Sep	15 Nov
19.	Mallard	0	2	11	2	14	15	33	12	0	89	87	2	10 (29 Sep)	43	20	27 May	18 Nov
20.	Pintail	0	0	0	0	6	2	11	0	0	19	19	0	11 ( 7 Oct)	7	3	29 Aug	7 Oct
21.	Teal	0	0	0	0	0	10	4	0	0	14	11	3	5 ( 2 Sep)	13	6	2 Sep	31 Oct
22.	Pochard	0	0	0	5	0	0	0	0	0	5	5	0	5 ( 1 Jul)	2	1	1 Jul	1 Jul
23.	Tufted Duck	0	2	7	0	0	0	0	0	0	9	7	2	6 (21 Jun)	7	3	12 May	21 Jun
24.	Eider	15	0	0	0	0	0	0	0	0	15	15	0	15 (20 Apr)	2	1	20 Apr	20 Apr
25.	Common Scoter	10	0	0	0	0	0	0	0	0	10	2	8	10 (20 Apr)	2	1	20 Apr	20 Apr
26.	Swift	0	18	34	7	3	5	0	0	0	67	33	34	10 (20 Jun)	30	14	6 May	1 Sep
27.	Cuckoo	0	0	5	0	0	0	0	0	0	5	5	0	4 (21 Jun)	4	2	21 Jun	24 Jun
28.	Feral Pigeon	0	0	24	40	0	0	0	0	0	64	26	38	22 ( 4 Jul)	9	4	16 Jun	4 Jul
29.	Stock Dove	0	2	16	8	3	13	54	36	2	134	118	16	35 (11 Oct)	48	22	13 May	10 Dec
30.	Woodpigeon	0	7	10	6	8	22	527	376	93	1049	1026	23	256 (14 Oct)	78	36	11 May	10 Dec
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Turtle Dove	0	1	0	0	0	0	0	0	0	1	1	0	1 (21 May)	2	1	21 May	21 May
32.	Collared Dove	0	1	1	0	0	1	0	1	0	4	3	1	1 (21 May)	9	4	21 May	1 Nov
33.	Crane	0	1	0	0	0	0	0	0	0	1	1	0	1 (12 May)	2	1	12 May	12 May
34.	Great Crested Grebe	3	0	0	0	0	0	0	0	0	3	3	0	3 (20 Apr)	2	1	20 Apr	20 Apr
35.	Oystercatcher	11	13	21	5	0	0	0	0	0	50	38	12	11 (20 Apr)	26	12	20 Apr	8 Jul
36.	Grey Plover	0	0	0	0	0	1	0	0	0	1	1	0	1 ( 1 Sep)	2	1	1 Sep	1 Sep
37.	Golden Plover	0	0	0	0	319	487	141	215	0	1162	1160	2	286 ( 1 Sep)	48	22	25 Aug	26 Nov
38.	Little Ringed Plover	0	1	0	0	0	0	0	0	0	1	0	1	1 (21 May)	2	1	21 May	21 May
39.	Lapwing	0	34	166	32	448	347	865	2146	22	4060	3935	125	1096 ( 1 Nov)	83	38	6 May	10 Dec
40.	Whimbrel	0	3	37	1	0	0	0	0	0	41	38	3	24 (21 Jun)	13	6	11 May	8 Jul
41.	Curlew	0	0	4	14	0	14	9	19	0	60	58	2	17 (15 Nov)	35	16	17 Jun	22 Nov
42.	Bar-tailed Godwit	656	0	0	0	0	0	0	0	0	656	656	0	656 (20 Apr)	2	1	20 Apr	20 Apr
43.	Black-tailed Godwit	0	8	4	0	0	0	0	0	0	12	9	3	4 ( 9 May)	11	5	9 May	21 Jun
44.	Snipe	0	0	0	0	43	39	112	34	0	228	224	4	41 (11 Oct)	43	20	25 Aug	15 Nov
45.	Common Sandpiper	0	0	0	0	2	0	0	0	0	2	2	0	1 (26 Aug)	4	2	26 Aug	29 Aug
46.	Green Sandpiper	0	0	2	0	0	2	0	0	0	4	4	0	2 (21 Jun)	4	2	21 Jun	2 Sep
47.	Redshank	0	10	13	12	0	0	0	0	0	35	16	19	12 ( 1 Jul)	13	6	20 May	1 Jul
48.	Spotted Redshank	0	0	0	0	2	0	0	0	0	2	2	0	2 (26 Aug)	2	1	26 Aug	26 Aug
49.	Knot	4	0	0	0	0	0	0	0	0	4	4	0	4 (20 Apr)	2	1	20 Apr	20 Apr
50.	Ruff	0	3	0	0	0	0	0	0	0	3	0	3	3 (21 May)	2	1	21 May	21 May
51.	Sanderling	0	0	0	2	0	0	0	0	0	2	2	0	2 ( 8 Jul)	2	1	8 Jul	8 Jul
52.	Little Tern	43	0	0	9	0	0	0	0	0	52	43	9	43 (20 Apr)	4	2	20 Apr	8 Jul
53.	Gull-billed Tern	5	1	0	0	0	0	0	0	0	6	5	1	5 (20 Apr)	4	2	20 Apr	26 May
54.	Black Tern	0	0	0	0	13	0	0	0	0	13	13	0	13 (25 Aug)	2	1	25 Aug	25 Aug
55.	Arctic Tern	3	0	0	0	0	0	0	0	0	3	3	0	3 (20 Apr)	2	1	20 Apr	20 Apr
56.	Common/Arctic Tern	39	0	0	0	0	0	0	0	0	39	39	0	39 (20 Apr)	2	1	20 Apr	20 Apr
57.	Common Tern	5	8	8	13	1	0	0	0	0	35	21	14	5 (20 Apr)	28	13	20 Apr	25 Aug
58.	Sandwich Tern	139	0	0	39	0	0	0	0	0	178	178	0	139 (20 Apr)	4	2	20 Apr	8 Jul
59.	Little Gull	162	0	0	0	0	0	0	0	0	162	162	0	162 (20 Apr)	2	1	20 Apr	20 Apr
60.	Black-headed Gull	9	63	29	80	116	450	132	72	3	954	897	57	329 (15 Sep)	80	37	20 Apr	10 Dec
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Mediterranean Gull	0	26	7	3	0	0	0	0	0	36	21	15	8 (21 May)	20	9	6 May	8 Jul
62.	Common Gull	4	4	3	4	5	11	38	34	1	104	98	6	14 (30 Oct)	59	27	20 Apr	10 Dec
63.	Caspian Gull	0	2	5	3	0	0	1	0	0	11	6	5	3 (21 Jun)	15	7	6 May	12 Oct
64.	Herring Gull	0	3	6	3	2	2	4	3	0	23	19	4	3 (21 Jun)	33	15	12 May	26 Nov
65.	Great Black-backed Gull	0	0	0	0	1	2	2	1	1	7	5	2	1 (29 Aug)	15	7	29 Aug	10 Dec
66.	Lesser Black-backed Gull	0	24	57	20	34	21	8	0	0	164	113	51	18 (16 Jun)	52	24	6 May	25 Oct
67.	Arctic Skua	0	0	0	1	0	0	0	0	0	1	1	0	1 ( 8 Jul)	2	1	8 Jul	8 Jul
68.	White Stork	0	9	7	3	24	14	8	4	0	69	57	12	23 (26 Aug)	37	17	11 May	17 Nov
69.	Gannet	2	0	0	4	0	0	0	0	0	6	2	4	4 ( 8 Jul)	4	2	20 Apr	8 Jul
70.	Cormorant	13	72	24	27	74	352	1224	273	5	2064	1949	115	491 (14 Oct)	87	40	20 Apr	10 Dec
71.	Glossy Ibis	0	2	0	0	0	0	0	0	0	2	2	0	2 ( 6 May)	2	1	6 May	6 May
72.	Spoonbill	0	22	6	7	1	7	0	0	0	43	17	26	7 ( 4 Jul)	33	15	6 May	15 Sep
73.	Little Egret	0	0	0	0	0	1	0	0	0	1	1	0	1 ( 1 Sep)	2	1	1 Sep	1 Sep
74.	Great White Egret	0	12	2	2	13	30	106	4	0	169	149	20	39 (11 Oct)	57	26	6 May	22 Nov
75.	Grey Heron	0	9	7	3	17	11	20	6	0	73	61	12	17 (29 Aug)	39	18	12 May	17 Nov
76.	Purple Heron	0	21	5	5	1	0	0	0	0	32	12	20	4 (11 May)	30	14	6 May	26 Aug
77.	Osprey	0	3	0	0	0	3	0	0	0	6	4	2	3 (21 May)	4	2	21 May	2 Sep
78.	Honey Buzzard	0	1	1	0	3	1	0	0	0	6	4	2	2 (26 Aug)	11	5	26 May	2 Sep
79.	Sparrowhawk	0	11	0	0	18	27	22	16	0	94	82	12	11 (26 Aug)	54	25	6 May	17 Nov
80.	Goshawk	0	0	0	0	0	4	6	0	0	10	10	0	2 ( 1 Sep)	17	8	1 Sep	31 Oct
81.	Marsh Harrier	0	19	3	1	9	23	3	1	0	59	41	18	14 ( 2 Sep)	41	19	11 May	18 Nov
82.	Hen Harrier	0	0	0	0	0	0	2	6	0	8	8	0	4 (17 Nov)	11	5	7 Oct	22 Nov
83.	Red Kite	0	2	0	0	0	0	12	1	0	15	13	2	7 (30 Oct)	15	7	12 May	2 Nov
84.	Black Kite	0	5	1	0	0	0	0	0	0	6	0	6	3 ( 6 May)	7	3	6 May	20 Jun
85.	White-tailed Eagle	0	0	0	0	0	3	0	1	0	4	4	0	2 (29 Sep)	7	3	2 Sep	18 Nov
86.	Rough-legged Buzzard	0	0	0	0	0	0	0	1	0	1	1	0	1 (17 Nov)	2	1	17 Nov	17 Nov
87.	Common Buzzard	0	21	0	1	24	121	46	62	1	276	254	22	57 ( 1 Sep)	63	29	6 May	10 Dec
88.	Short-eared Owl	0	0	0	0	0	0	1	0	0	1	1	0	1 (11 Oct)	2	1	11 Oct	11 Oct
89.	Kingfisher	0	0	1	0	0	0	0	1	0	2	2	0	1 (24 Jun)	4	2	24 Jun	15 Nov
90.	Great Spotted Woodpecker	0	3	2	0	1	0	0	1	0	7	7	0	2 (17 Jun)	13	6	12 May	8 Nov
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Green Woodpecker	0	0	0	1	0	1	0	0	1	3	3	0	1 ( 4 Jul)	7	3	4 Jul	10 Dec
92.	Kestrel	0	6	1	0	3	7	3	0	0	20	13	7	3 ( 1 Sep)	26	12	12 May	7 Oct
93.	Merlin	0	0	0	0	0	0	2	0	0	2	2	0	2 (13 Oct)	2	1	13 Oct	13 Oct
94.	Hobby	0	11	1	0	6	24	0	0	0	42	29	13	14 ( 2 Sep)	26	12	6 May	15 Sep
95.	Peregrine	0	3	0	1	0	3	6	0	0	13	10	3	1 (12 May)	28	13	12 May	30 Oct
96.	Rose-ringed Parakeet	0	8	9	5	26	70	60	8	4	190	177	13	38 ( 1 Sep)	65	30	11 May	10 Dec
97.	Jay	0	1	1	0	0	3	2	0	0	7	6	1	2 ( 2 Sep)	11	5	6 May	13 Oct
98.	Magpie	0	7	8	1	0	1	0	3	0	20	6	14	6 (20 Jun)	22	10	11 May	22 Nov
99.	Jackdaw	0	30	1291	105	564	466	141	54	20	2671	1762	909	567 (20 Jun)	74	34	6 May	10 Dec
100.	Rook	0	1	0	0	14	1	8	1	1	26	11	15	12 (29 Aug)	20	9	6 May	10 Dec
101.	Carrion Crow	0	2	2	0	5	1	0	1	0	11	9	2	5 (29 Aug)	13	6	11 May	15 Nov
102.	Raven	0	0	0	0	0	0	2	1	0	3	3	0	2 (13 Oct)	4	2	13 Oct	17 Nov
103.	Blue Tit	0	0	3	2	0	3	30	0	1	39	39	0	30 (26 Oct)	13	6	20 Jun	10 Dec
104.	Great Tit	0	0	26	1	1	0	5	2	0	35	35	0	13 (21 Jun)	17	8	17 Jun	18 Nov
105.	Penduline Tit	0	0	0	0	0	1	0	0	0	1	1	0	1 (29 Sep)	2	1	29 Sep	29 Sep
106.	Wood Lark	0	0	0	0	0	0	3	3	0	6	6	0	2 (14 Oct)	9	4	13 Oct	17 Nov
107.	Skylark	0	0	0	0	0	222	6586	645	0	7453	7453	0	3024 (11 Oct)	37	17	29 Sep	18 Nov
108.	Sand Martin	0	5	0	0	22	2	0	0	0	29	28	1	17 (26 Aug)	13	6	12 May	2 Sep
109.	Swallow	0	13	25	33	74	720	0	0	0	865	837	28	667 (15 Sep)	39	18	6 May	29 Sep
110.	House Martin	0	3	3	4	19	23	0	0	0	52	48	4	22 ( 2 Sep)	20	9	11 May	2 Sep
111.	Long-tailed Tit	0	0	0	0	0	2	6	0	14	22	22	0	14 (10 Dec)	9	4	2 Sep	10 Dec
112.	Chiffchaff	0	0	1	2	0	0	0	0	0	3	3	0	2 ( 4 Jul)	4	2	17 Jun	4 Jul
113.	Chiffchaff/Willow Warbler	0	0	1	0	0	0	0	0	0	1	1	0	1 (16 Jun)	2	1	16 Jun	16 Jun
114.	Firecrest	0	0	0	0	1	0	0	0	0	1	1	0	1 (26 Aug)	2	1	26 Aug	26 Aug
115.	Goldcrest	0	0	0	0	0	1	0	0	0	1	1	0	1 ( 1 Sep)	2	1	1 Sep	1 Sep
116.	Starling	0	52	531	260	106	273	4116	2098	34	7470	7402	68	1410 (13 Oct)	80	37	6 May	10 Dec
117.	Song Thrush	0	0	0	0	0	1	245	1	0	247	243	4	95 (12 Oct)	15	7	29 Sep	17 Nov
118.	Mistle Thrush	0	0	0	0	0	0	7	3	0	10	10	0	4 (12 Oct)	11	5	7 Oct	18 Nov
119.	Redwing	0	0	0	0	0	0	350	167	9	526	526	0	145 (17 Nov)	26	12	7 Oct	10 Dec
120.	Blackbird	0	0	0	0	0	0	1	1	0	2	2	0	1 (30 Oct)	4	2	30 Oct	15 Nov
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Fieldfare	0	0	0	0	0	0	2674	361	3	3038	3023	15	2096 (25 Oct)	35	16	7 Oct	10 Dec
122.	Spotted Flycatcher	0	1	0	0	0	0	0	0	0	1	0	1	1 (21 May)	2	1	21 May	21 May
123.	Whinchat	0	0	0	0	0	4	0	0	0	4	4	0	2 ( 1 Sep)	4	2	1 Sep	2 Sep
124.	Wheatear	0	1	0	0	1	0	1	0	0	3	2	1	1 ( 6 May)	7	3	6 May	14 Oct
125.	Tree Sparrow	0	0	0	0	0	10	2	3	0	15	14	1	9 (29 Sep)	11	5	2 Sep	17 Nov
126.	House Sparrow	0	0	0	2	0	0	3	0	0	5	5	0	2 ( 1 Jul)	7	3	1 Jul	25 Oct
127.	Dunnock	0	0	0	0	0	0	0	1	0	1	1	0	1 (22 Nov)	2	1	22 Nov	22 Nov
128.	Blue-headed Wagtail	0	37	1	2	96	128	0	0	0	264	226	38	71 ( 2 Sep)	35	16	6 May	29 Sep
129.	Yellow Wagtail (flavissima)	0	0	0	0	1	0	0	0	0	1	1	0	1 (29 Aug)	2	1	29 Aug	29 Aug
130.	Grey Wagtail	0	0	0	0	0	4	34	0	0	38	37	1	11 (12 Oct)	15	7	29 Sep	30 Oct
131.	White Wagtail	0	3	9	4	15	25	37	6	0	99	95	4	15 (29 Aug)	52	24	12 May	18 Nov
132.	Meadow Pipit	0	3	0	1	1	2468	5465	24	0	7962	7952	10	2447 (29 Sep)	48	22	6 May	17 Nov
133.	Tree Pipit	0	0	0	0	2	3	0	0	0	5	5	0	2 (29 Aug)	7	3	29 Aug	2 Sep
134.	Water Pipit	0	0	0	0	0	0	1	1	5	7	7	0	5 (10 Dec)	7	3	27 Oct	10 Dec
135.	Chaffinch	0	0	4	0	2	90	4436	572	1	5105	5105	0	1195 (14 Oct)	54	25	16 Jun	10 Dec
136.	Brambling	0	0	0	0	0	3	23	27	0	53	53	0	19 ( 1 Nov)	26	12	29 Sep	22 Nov
137.	Hawfinch	0	0	0	0	0	0	1	0	0	1	1	0	1 (12 Oct)	2	1	12 Oct	12 Oct
138.	Bullfinch	0	0	0	0	0	0	2	0	0	2	2	0	2 (13 Oct)	2	1	13 Oct	13 Oct
139.	Greenfinch	0	0	1	1	15	9	39	2	1	68	67	1	24 (14 Oct)	33	15	24 Jun	10 Dec
140.	Linnet	0	0	0	0	0	16	198	33	0	247	237	10	91 (13 Oct)	24	11	28 Sep	17 Nov
141.	Mealy Redpoll	0	0	0	0	0	0	0	1	0	1	1	0	1 (18 Nov)	2	1	18 Nov	18 Nov
142.	redpoll sp.	0	0	0	0	0	0	0	4	0	4	4	0	3 (22 Nov)	4	2	17 Nov	22 Nov
143.	Crossbill	0	0	0	0	0	0	0	1	0	1	1	0	1 (17 Nov)	2	1	17 Nov	17 Nov
144.	Goldfinch	0	4	5	1	6	29	27	0	0	72	62	10	27 ( 1 Sep)	33	15	6 May	14 Oct
145.	Siskin	0	0	0	0	0	0	63	0	0	63	63	0	21 (13 Oct)	15	7	7 Oct	31 Oct
146.	Reed Bunting	0	0	0	0	0	19	111	11	0	141	141	0	43 (14 Oct)	33	15	1 Sep	18 Nov
	Other species
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Small Tortoiseshell	0	0	3	0	0	0	0	0	0	3	3	0	1 (17 Jun)	7	3	17 Jun	21 Jun
2.	Dark Clouded Yellow	0	0	0	1	0	0	0	0	0	1	1	0	1 ( 1 Jul)	2	1	1 Jul	1 Jul
3.	European Peacock	0	0	0	1	0	1	0	1	0	3	2	1	1 ( 1 Jul)	7	3	1 Jul	2 Nov
4.	Speckled Wood	0	1	0	0	0	1	0	0	0	2	1	1	1 (12 May)	4	2	12 May	29 Sep
5.	Large White	0	0	1	3	0	0	0	0	0	4	4	0	3 ( 1 Jul)	4	2	21 Jun	1 Jul
6.	white sp. (butterfly)	0	0	1	0	0	0	0	0	0	1	0	1	1 (21 Jun)	2	1	21 Jun	21 Jun
7.	Red Admiral	0	1	1	13	0	0	2	2	0	19	18	1	13 ( 1 Jul)	15	7	12 May	17 Nov
8.	Painted Lady	0	0	1	0	0	0	0	0	0	1	1	0	1 (21 Jun)	2	1	21 Jun	21 Jun
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	1124	2643	2828	992	3671	8396	35533	10356	2729	68272	62341	5931		100	46
	Observation hours	2:30	42:05	14:25	7:58	14:21	27:50	34:49	22:18	2:52	169:08

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Trektellen

Totals Aetsveldsche polder, Nigtevecht 2018