Totals Castricum aan Zee (zeetrek) 2020

Year
Period
count-field
Also present

	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	63	53	621	3322	2249	0	1	0	6	73	102	6	6496	233	6263	2249 (3 Apr)	40	57	4 Jan	25 Dec
2.	Pale-bellied Brent Goose	0	0	0	12	1	0	0	0	0	0	0	0	13	0	13	10 (27 Apr)	3	4	3 Apr	17 May
3.	Black Brant	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (17 May)	1	1	17 May	17 May
4.	Canada Goose	0	0	0	3	3	0	0	1	0	0	0	0	7	2	5	3 (17 May)	3	4	5 Apr	7 Aug
5.	Barnacle Goose	0	0	270	2700	65	0	0	0	0	0	62	0	3097	121	2976	1400 (23 Apr)	19	27	14 Mar	29 Nov
6.	Ross's Goose	0	0	0	0	1	0	0	0	0	0	1	0	2	1	1	1 (5 May)	1	2	5 May	22 Nov
7.	Greylag Goose	0	14	105	62	24	0	12	0	0	5	4	58	284	103	181	30 (31 Dec)	23	33	5 Feb	31 Dec
8.	goose sp.	0	0	0	0	0	0	0	0	0	0	102	17	119	119	0	70 (7 Nov)	3	4	7 Nov	5 Dec
9.	Domestic Goose	0	0	2	0	0	0	0	0	0	0	0	0	2	2	0	2 (24 Mar)	1	1	24 Mar	24 Mar
10.	Pink-footed Goose	585	0	0	0	0	0	0	0	0	0	0	0	585	0	585	585 (11 Jan)	1	1	11 Jan	11 Jan
11.	Tundra Bean Goose	0	0	0	0	0	0	0	0	0	0	46	5	51	51	0	45 (29 Nov)	2	3	25 Nov	13 Dec
12.	Eurasian White-fronted Goose	0	41	0	0	0	0	0	0	0	0	89	16	146	105	41	89 (29 Nov)	4	5	5 Feb	20 Dec
13.	Mute Swan	0	0	0	11	15	0	0	0	0	0	0	0	26	9	17	9 (27 Apr)	5	7	8 Apr	10 May
14.	Egyptian Goose	0	0	7	75	34	0	1	0	0	5	0	23	145	61	84	22 (11 Apr)	15	21	14 Mar	31 Dec
15.	Shelduck	22	4	40	126	242	110	500	35	15	18	24	2	1138	143	995	184 (11 Jul)	55	78	18 Jan	24 Dec
16.	Garganey	0	0	13	14	2	0	0	0	0	0	0	0	29	5	24	6 (24 Mar)	8	11	14 Mar	7 May
17.	Shoveler	0	0	260	2230	6	0	0	2	0	8	25	0	2531	298	2233	1701 (5 Apr)	24	34	7 Mar	29 Nov
18.	Gadwall	0	0	18	63	21	2	1	1	0	12	6	0	124	34	90	30 (5 Apr)	18	25	16 Mar	29 Nov
19.	Wigeon	29	29	1183	2415	0	0	0	21	8	175	390	120	4370	569	3801	1938 (3 Apr)	41	58	4 Jan	31 Dec
20.	Mallard	0	0	0	5	3	0	0	1	0	2	5	2	18	9	9	5 (29 Nov)	6	8	5 Apr	2 Dec
21.	Pintail	0	14	80	65	0	0	6	0	6	14	0	0	185	25	160	42 (3 Apr)	21	29	14 Feb	18 Oct
22.	Teal	0	1	311	1102	6	1	10	55	37	46	174	4	1747	186	1561	379 (3 Apr)	46	65	8 Feb	5 Dec
23.	duck sp.	0	0	142	28	32	0	0	0	1	1	59	0	263	71	192	100 (9 Mar)	9	13	9 Mar	29 Nov
24.	Pochard	0	0	1	0	1	0	0	0	2	0	118	0	122	117	5	116 (29 Nov)	4	5	6 Mar	29 Nov
25.	Tufted Duck	0	0	11	45	6	0	1	2	9	7	17	5	103	25	78	23 (5 Apr)	19	27	6 Mar	24 Dec
26.	Scaup	0	0	18	10	0	0	1	0	0	1	341	30	401	143	258	340 (29 Nov)	8	11	19 Mar	5 Dec
27.	Eider	13	22	360	187	91	9	18	0	39	28	55	31	853	325	528	52 (7 Mar)	60	85	4 Jan	30 Dec
28.	Velvet Scoter	9	7	73	15	6	0	0	0	0	8	66	84	268	155	113	46 (30 Dec)	23	32	4 Jan	31 Dec
29.	Common Scoter	217	345	1614	4357	1354	104	595	245	347	1463	17059	36326	64026	52851	11175	6642 (30 Dec)	94	133	4 Jan	31 Dec
30.	Goldeneye	0	1	2	3	0	0	0	0	0	2	27	0	35	10	25	25 (29 Nov)	6	8	5 Feb	29 Nov
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Goosander	0	0	0	4	1	0	0	0	0	1	3	2	11	4	7	3 (19 Apr)	6	8	18 Apr	5 Dec
32.	Red-breasted Merganser	0	5	164	322	32	0	0	0	1	29	18	17	588	69	519	114 (3 Apr)	43	61	5 Feb	25 Dec
33.	Swift	0	0	0	0	0	0	2	0	0	0	0	0	2	2	0	1 (5 Jul)	1	2	5 Jul	6 Jul
34.	Feral Pigeon	0	0	0	0	0	0	6	2	0	0	0	0	8	7	1	5 (31 Jul)	3	4	27 Jul	22 Aug
35.	Red-necked Grebe	0	0	0	2	0	0	0	0	0	0	1	2	5	1	4	2 (2 Dec)	3	4	10 Apr	2 Dec
36.	Great Crested Grebe	5	96	70	40	38	7	5	13	1	8	29	32	344	149	195	43 (5 Feb)	57	81	11 Jan	31 Dec
37.	Slavonian Grebe	0	0	0	0	0	0	0	0	0	0	0	1	1	0	1	1 (13 Dec)	1	1	13 Dec	13 Dec
38.	Black-necked Grebe	0	0	0	0	0	0	1	0	0	0	0	0	1	0	1	1 (11 Jul)	1	1	11 Jul	11 Jul
39.	Oystercatcher	1	0	46	250	197	3	45	28	8	0	0	2	580	216	364	65 (23 Apr)	49	69	4 Jan	24 Dec
40.	Avocet	0	0	35	26	2	0	0	0	0	0	0	0	63	6	57	18 (20 Apr)	9	13	4 Mar	10 May
41.	Grey Plover	0	0	35	521	235	4	0	8	0	0	0	0	803	8	795	417 (29 Apr)	23	32	19 Mar	26 Aug
42.	Golden Plover	0	0	0	0	0	0	0	2	0	5	1	0	8	7	1	3 (9 Oct)	4	5	9 Aug	21 Nov
43.	Ringed Plover	0	0	1	40	70	0	3	6	1	1	0	0	122	11	111	31 (6 May)	15	21	19 Mar	17 Oct
44.	Little Ringed Plover	0	0	0	2	0	0	0	0	0	0	0	0	2	0	2	2 (23 Apr)	1	1	23 Apr	23 Apr
45.	Lapwing	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (21 Mar)	1	1	21 Mar	21 Mar
46.	Whimbrel	0	0	0	777	70	3	26	14	1	0	0	0	891	44	847	171 (19 Apr)	26	36	3 Apr	8 Sep
47.	Curlew	1	5	19	100	5	7	2	8	2	4	5	0	158	24	134	35 (17 Apr)	29	41	4 Jan	29 Nov
48.	Bar-tailed Godwit	0	0	34	4423	72	0	5	2	2	0	0	0	4538	13	4525	2457 (25 Apr)	17	24	28 Mar	6 Sep
49.	Black-tailed Godwit	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (22 Mar)	1	1	22 Mar	22 Mar
50.	Woodcock	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (4 Nov)	1	1	4 Nov	4 Nov
51.	Snipe	0	0	0	1	0	0	0	13	0	0	4	0	18	17	1	13 (7 Aug)	2	3	8 Apr	4 Nov
52.	Grey Phalarope	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (10 Oct)	1	1	10 Oct	10 Oct
53.	Common Sandpiper	0	0	0	1	0	0	0	2	0	0	0	0	3	2	1	2 (28 Aug)	1	2	23 Apr	28 Aug
54.	Green Sandpiper	0	0	0	0	0	0	2	0	0	0	0	0	2	2	0	1 (16 Jul)	1	2	16 Jul	31 Jul
55.	Redshank	0	0	7	287	34	0	6	8	0	0	0	0	342	1	341	270 (29 Apr)	16	22	6 Mar	9 Aug
56.	Spotted Redshank	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (23 Apr)	1	1	23 Apr	23 Apr
57.	Greenshank	0	0	0	1	7	0	0	0	0	0	0	0	8	0	8	4 (6 May)	3	4	22 Apr	10 May
58.	Turnstone	0	0	0	40	8	0	0	4	13	0	0	4	69	14	55	35 (29 Apr)	9	13	25 Apr	31 Dec
59.	Knot	0	0	135	2015	123	0	0	7	7	60	0	4	2351	75	2276	1950 (29 Apr)	21	30	7 Mar	24 Dec
60.	Ruff	0	0	0	26	0	0	0	0	0	0	0	0	26	0	26	26 (10 Apr)	1	1	10 Apr	10 Apr
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	wader sp.	0	0	37	51	20	1	1	0	0	4	1	0	115	7	108	26 (21 Mar)	13	18	7 Mar	16 Nov
62.	Curlew Sandpiper	0	0	0	1	2	0	0	5	0	0	0	0	8	5	3	5 (28 Aug)	2	3	29 Apr	28 Aug
63.	Sanderling	1	14	198	1902	1816	44	43	14	45	248	112	0	4437	312	4125	978 (29 Apr)	49	69	29 Jan	29 Nov
64.	Dunlin	0	1	1295	865	157	0	1	15	7	9	333	1	2684	330	2354	305 (21 Mar)	42	59	14 Feb	25 Dec
65.	Purple Sandpiper	0	0	0	1	0	0	0	0	0	0	4	0	5	3	2	3 (1 Nov)	2	3	23 Apr	29 Nov
66.	Little Stint	0	0	0	2	1	0	0	0	0	0	1	0	4	1	3	1 (22 Apr)	3	4	22 Apr	7 Nov
67.	Calidris sp.	0	0	0	80	0	1	2	1	31	3	97	0	215	121	94	78 (4 Nov)	12	17	5 Apr	22 Nov
68.	Little Tern	0	0	0	302	169	3	9	3	0	0	0	0	486	26	460	127 (23 Apr)	18	26	12 Apr	7 Aug
69.	Gull-billed Tern	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (4 May)	1	1	4 May	4 May
70.	Caspian Tern	0	0	0	0	0	0	3	0	0	0	0	0	3	2	1	2 (10 Jul)	1	2	10 Jul	16 Jul
71.	Black Tern	0	0	0	742	97	0	0	13	5	0	0	0	857	53	804	240 (26 Apr)	18	26	10 Apr	12 Sep
72.	Arctic Tern	0	0	0	94	71	0	1	0	0	0	0	0	166	3	163	49 (25 Apr)	8	11	25 Apr	23 Jul
73.	Common/Arctic Tern	0	0	0	5478	6576	148	1178	1479	738	1	0	0	15598	5700	9898	2314 (26 Apr)	43	61	5 Apr	10 Oct
74.	Common Tern	0	0	0	2418	1988	95	1163	428	0	1	1	0	6094	2790	3304	425 (10 May)	35	50	3 Apr	3 Nov
75.	Roseate Tern	0	0	0	0	0	0	1	0	0	0	0	0	1	1	0	1 (1 Jul)	1	1	1 Jul	1 Jul
76.	Sandwich Tern	0	0	21	3857	4445	250	2074	1580	2051	339	1	0	14618	7542	7076	977 (5 Sep)	65	92	7 Mar	7 Nov
77.	Little Gull	0	0	36	10083	41	0	1	1	6	17	242	0	10427	658	9769	1852 (23 Apr)	33	47	14 Mar	29 Nov
78.	Kittiwake	311	10	1	0	2	0	0	1	2	215	6606	221	7369	6283	1086	2615 (21 Nov)	25	35	4 Jan	31 Dec
79.	Sabine's Gull	0	0	0	0	0	0	0	0	0	0	1	0	1	0	1	1 (22 Nov)	1	1	22 Nov	22 Nov
80.	Black-headed Gull	24	121	420	2236	420	59	6440	3445	959	649	2104	345	17222	13420	3802	3060 (19 Jul)	94	132	4 Jan	31 Dec
81.	Mediterranean Gull	0	1	1	10	9	3	28	7	4	2	0	0	65	43	22	7 (22 Jul)	21	30	1 Feb	10 Oct
82.	Common Gull	224	77	1434	7333	913	40	409	269	809	1522	2876	686	16592	5896	10696	1026 (3 Apr)	95	134	4 Jan	31 Dec
83.	Caspian Gull	0	0	1	0	0	0	0	0	0	0	3	0	4	3	1	2 (7 Nov)	2	3	7 Mar	21 Nov
84.	Yellow-legged Gull	0	0	0	0	0	0	1	1	0	0	0	0	2	1	1	1 (19 Jul)	1	2	19 Jul	9 Aug
85.	Great Black-backed Gull	0	0	11	1	0	1	2	1	0	0	0	0	16	0	16	11 (27 Mar)	4	6	27 Mar	22 Aug
86.	Lesser Black-backed Gull	1	5	3	0	0	0	0	0	0	0	55	7	71	60	11	34 (7 Nov)	10	14	31 Jan	25 Dec
87.	Long-tailed Skua	0	0	0	0	0	0	0	5	0	0	0	0	5	2	3	5 (26 Aug)	1	1	26 Aug	26 Aug
88.	skua sp.	0	0	0	0	0	0	0	5	2	5	1	0	13	6	7	5 (26 Aug)	6	9	26 Aug	19 Nov
89.	Arctic Skua	0	0	0	4	12	0	2	10	4	11	4	0	47	23	24	10 (26 Aug)	18	26	3 Apr	25 Nov
90.	Pomarine Skua	0	0	0	0	0	0	0	0	1	6	5	0	12	10	2	3 (9 Oct)	5	7	26 Sep	19 Nov
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Great Skua	0	0	0	0	0	0	0	4	2	3	3	5	17	12	5	4 (26 Aug)	8	11	26 Aug	31 Dec
92.	Puffin	0	0	0	0	0	0	0	0	0	0	0	3	3	3	0	2 (20 Dec)	1	2	20 Dec	31 Dec
93.	Razorbill	2	0	0	0	0	0	0	0	2	3	35	0	42	37	5	17 (17 Nov)	9	13	11 Jan	25 Nov
94.	Razorbill/Guillemot	117	3	1	0	2	0	0	0	62	457	4539	2520	7701	5738	1963	1711 (16 Nov)	32	45	4 Jan	31 Dec
95.	Little Auk	0	0	0	0	0	0	0	0	0	0	3	0	3	3	0	3 (1 Nov)	1	1	1 Nov	1 Nov
96.	Guillemot	24	0	0	0	1	0	0	0	2	8	76	9	120	88	32	15 (18 Jan)	18	25	4 Jan	24 Dec
97.	Red-throated Diver	48	10	64	64	18	1	1	0	11	11	301	13	542	347	195	150 (25 Nov)	50	70	4 Jan	30 Dec
98.	Black-throated Diver	0	0	0	8	4	0	0	0	1	0	13	0	26	10	16	7 (29 Nov)	9	13	2 Apr	29 Nov
99.	Great Northern Diver	0	1	0	0	0	0	0	0	0	0	0	0	1	1	0	1 (14 Feb)	1	1	14 Feb	14 Feb
100.	diver sp.	426	208	236	147	34	0	0	0	6	89	1689	2605	5440	4678	762	1301 (5 Dec)	58	82	4 Jan	31 Dec
101.	Leach's Petrel	0	0	0	0	0	0	0	0	2	0	2	0	4	3	1	2 (6 Sep)	2	3	6 Sep	21 Nov
102.	Fulmar	0	1	0	2	0	5	0	0	0	0	0	0	8	1	7	3 (5 Jun)	4	5	26 Feb	30 Jun
103.	Sooty Shearwater	0	0	0	0	0	0	0	2	1	7	0	0	10	7	3	3 (9 Oct)	4	6	23 Aug	10 Oct
104.	Gannet	120	3	8	15	121	28	179	77	48	81	414	186	1280	692	588	231 (21 Nov)	70	99	4 Jan	31 Dec
105.	Cormorant	0	0	0	0	0	0	0	3	4	0	0	520	527	158	369	366 (20 Dec)	4	6	26 Aug	30 Dec
106.	Spoonbill	0	0	0	9	0	0	0	5	0	38	0	0	52	43	9	25 (10 Oct)	4	6	10 Apr	10 Oct
107.	Little Egret	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (23 Apr)	1	1	23 Apr	23 Apr
108.	Great White Egret	0	0	0	1	0	0	2	0	0	2	2	0	7	6	1	2 (2 Oct)	4	5	20 Apr	7 Nov
109.	Grey Heron	0	0	0	13	0	0	3	4	0	2	5	0	27	12	15	6 (23 Apr)	11	15	5 Apr	29 Nov
110.	Purple Heron	0	0	0	0	0	0	0	2	0	0	0	0	2	2	0	2 (7 Aug)	1	1	7 Aug	7 Aug
111.	Osprey	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (17 May)	1	1	17 May	17 May
112.	Sparrowhawk	0	0	0	0	0	0	0	0	0	0	3	0	3	3	0	1 (4 Nov)	2	3	4 Nov	22 Nov
113.	Marsh Harrier	0	0	0	2	0	0	0	0	0	0	0	0	2	0	2	2 (23 Apr)	1	1	23 Apr	23 Apr
114.	Hen Harrier	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (3 Nov)	1	1	3 Nov	3 Nov
115.	Kestrel	0	0	0	2	0	0	0	1	0	0	0	0	3	1	2	2 (23 Apr)	1	2	23 Apr	7 Aug
116.	Merlin	0	0	0	1	0	0	0	0	0	2	0	0	3	2	1	1 (20 Apr)	2	3	20 Apr	29 Oct
117.	Hobby	0	0	0	0	0	0	0	0	0	1	0	0	1	0	1	1 (4 Oct)	1	1	4 Oct	4 Oct
118.	Peregrine	0	0	0	1	0	0	0	0	2	0	0	1	4	3	1	1 (23 Apr)	3	4	23 Apr	5 Dec
119.	Jackdaw	0	0	3	0	0	0	0	0	0	0	0	0	3	0	3	3 (11 Mar)	1	1	11 Mar	11 Mar
120.	Sand Martin	0	0	0	0	0	0	1	0	0	0	0	0	1	1	0	1 (3 Jul)	1	1	3 Jul	3 Jul
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Swallow	0	0	0	18	2	0	0	0	0	0	0	0	20	2	18	18 (20 Apr)	2	3	20 Apr	4 May
122.	Starling	0	0	73	0	0	0	0	0	0	0	0	0	73	0	73	60 (20 Mar)	2	3	20 Mar	28 Mar
123.	Yellow Wagtail (flavissima)	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (22 Apr)	1	1	22 Apr	22 Apr
124.	Grey-headed Wagtail	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (17 May)	1	1	17 May	17 May
125.	Grey Wagtail	0	0	1	0	0	0	0	0	0	0	0	0	1	1	0	1 (21 Mar)	1	1	21 Mar	21 Mar
126.	White Wagtail	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (11 Mar)	1	1	11 Mar	11 Mar
127.	alba wagtail sp.	0	0	8	1	0	0	0	0	0	0	0	0	9	1	8	3 (25 Mar)	4	5	4 Mar	2 Apr
128.	Meadow Pipit	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (9 Oct)	1	1	9 Oct	9 Oct
129.	Rock Pipit	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (21 Mar)	1	1	21 Mar	21 Mar
130.	Linnet	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (4 May)	1	1	4 May	4 May
131.	Siskin	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (7 May)	1	1	7 May	7 May
132.	Lapland Bunting	0	0	0	0	0	0	0	0	0	0	0	1	1	0	1	1 (5 Dec)	1	1	5 Dec	5 Dec
133.	Snow Bunting	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (7 Mar)	1	1	7 Mar	7 Mar
	Other species
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Harbour Porpoise	12	16	11	3	8	0	1	1	0	14	11	6	83	40	43	7 (5 Feb)	22	31	4 Jan	25 Dec
2.	Grey seal	0	0	0	1	0	0	0	0	0	0	0	0	1	1	0	1 (3 Apr)	1	1	3 Apr	3 Apr
3.	Common Seal	0	1	0	2	0	0	0	0	0	0	2	1	6	2	4	1 (14 Feb)	4	6	14 Feb	5 Dec
4.	Common / Grey seal	0	0	0	0	1	0	2	0	0	0	0	0	3	3	0	1 (9 May)	2	3	9 May	29 Jul
	Other species
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	white sp. (butterfly)	0	0	0	0	9	0	0	0	0	0	0	0	9	0	9	6 (9 May)	1	2	9 May	21 May
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	2255	1109	9545	61481	22001	929	12797	7862	5313	5728	38380	43923	211323	111651	99672		100	141
	Observation hours	7:00	5:50	30:50	48:30	36:15	9:23	31:45	24:50	22:45	30:05	37:50	15:03	300:06

This page is created on 2026/01/25 10:16:06 and will be cached for 2 minutes.

Trektellen

Totals Castricum aan Zee (zeetrek) 2020