Totals Castricum aan Zee (zeetrek) 2024

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	44	521	1120	56	1299	0	0	0	27	35	81	26	3209	139	3070	1293 (13 May)	45	37	3 Jan	21 Dec
2.	Pale-bellied Brent Goose	0	1	0	0	6	0	0	0	0	0	0	0	7	0	7	6 (13 May)	2	2	17 Feb	13 May
3.	Canada Goose	1	0	0	0	0	0	0	0	0	0	0	0	1	0	1	1 (27 Jan)	1	1	27 Jan	27 Jan
4.	Barnacle Goose	98	0	489	886	299	0	5	0	0	0	0	9	1786	96	1690	846 (6 Apr)	15	12	17 Jan	29 Dec
5.	Greylag Goose	5	38	97	13	37	1	49	0	0	1	0	10	251	77	174	54 (3 Mar)	30	25	27 Jan	13 Dec
6.	goose sp.	25	2	0	0	0	0	0	0	0	0	0	0	27	0	27	25 (28 Jan)	2	2	28 Jan	25 Feb
7.	Pink-footed Goose	290	752	0	0	0	0	0	0	0	0	0	0	1042	0	1042	752 (10 Feb)	4	3	27 Jan	10 Feb
8.	Tundra Bean Goose	0	0	0	0	0	0	0	0	0	0	0	5	5	0	5	5 (13 Dec)	1	1	13 Dec	13 Dec
9.	Mute Swan	0	0	0	2	7	0	0	0	0	0	0	0	9	2	7	7 (2 May)	2	2	6 Apr	2 May
10.	Egyptian Goose	1	26	9	0	2	0	1	0	0	8	2	0	49	4	45	15 (7 Feb)	12	10	28 Jan	23 Nov
11.	Shelduck	2	20	56	20	40	284	425	23	22	1	8	18	919	95	824	211 (26 Jun)	57	47	2 Jan	29 Dec
12.	Garganey	0	0	2	0	0	0	0	0	0	0	0	0	2	0	2	2 (9 Mar)	1	1	9 Mar	9 Mar
13.	Shoveler	0	17	214	16	18	0	5	0	0	0	10	0	280	29	251	148 (31 Mar)	18	15	28 Feb	13 Nov
14.	Gadwall	0	0	8	2	2	12	22	7	1	2	0	0	56	13	43	14 (10 Jul)	15	12	3 Mar	27 Oct
15.	Wigeon	149	188	632	67	0	2	0	2	31	59	69	116	1315	315	1000	375 (16 Mar)	48	39	2 Jan	29 Dec
16.	Mallard	0	0	6	0	0	0	3	1	0	0	0	0	10	2	8	2 (9 Mar)	7	6	9 Mar	29 Aug
17.	Pintail	0	41	99	0	2	0	0	0	4	2	1	0	149	5	144	39 (16 Mar)	16	13	10 Feb	22 Nov
18.	Teal	26	140	408	173	11	0	1	43	49	22	0	8	881	178	703	144 (16 Mar)	52	43	2 Jan	29 Dec
19.	duck sp.	0	0	0	0	0	0	0	0	0	2	2	2	6	6	0	2 (27 Oct)	4	3	27 Oct	29 Dec
20.	Pochard	0	19	0	0	0	0	1	0	0	0	0	0	20	19	1	19 (25 Feb)	2	2	25 Feb	17 Jul
21.	Tufted Duck	0	0	12	3	2	0	1	1	5	2	5	2	33	11	22	7 (3 Mar)	18	15	3 Mar	29 Dec
22.	Scaup	1	1	2	0	1	0	0	0	0	0	23	0	28	12	16	23 (13 Nov)	6	5	28 Jan	13 Nov
23.	King Eider	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (23 Mar)	1	1	23 Mar	23 Mar
24.	Eider	13	75	86	47	43	0	0	0	5	23	28	20	340	209	131	25 (16 Mar)	50	41	17 Jan	20 Dec
25.	Velvet Scoter	171	369	295	230	45	0	0	0	0	4	72	180	1366	1305	61	225 (14 Apr)	54	44	2 Jan	29 Dec
26.	Common Scoter	4321	8716	13194	17109	10427	126	1525	128	559	429	3418	4247	64199	55671	8528	13012 (14 Apr)	96	79	2 Jan	29 Dec
27.	Long-tailed Duck	0	1	1	0	0	0	0	0	0	0	1	0	3	2	1	1 (21 Feb)	4	3	21 Feb	11 Nov
28.	Goldeneye	0	0	0	0	0	0	0	0	0	0	9	0	9	6	3	9 (13 Nov)	1	1	13 Nov	13 Nov
29.	Goosander	0	0	0	0	0	0	0	0	0	0	2	1	3	2	1	2 (22 Nov)	2	2	22 Nov	29 Dec
30.	Red-breasted Merganser	21	10	32	16	16	0	4	0	2	0	29	7	137	32	105	24 (13 Nov)	43	35	2 Jan	29 Dec
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Swift	0	0	0	0	0	7	0	0	0	0	0	0	7	2	5	5 (26 Jun)	2	2	20 Jun	26 Jun
32.	Stock Dove	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (22 Apr)	1	1	22 Apr	22 Apr
33.	Red-necked Grebe	0	1	0	0	0	0	0	0	0	0	2	2	5	2	3	2 (13 Dec)	5	4	10 Feb	13 Dec
34.	Great Crested Grebe	186	28	11	6	2	1	8	11	15	19	40	133	460	357	103	112 (3 Jan)	63	52	2 Jan	29 Dec
35.	Slavonian Grebe	0	1	0	0	0	0	0	0	0	0	0	0	1	0	1	1 (10 Feb)	1	1	10 Feb	10 Feb
36.	Black-necked Grebe	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (25 Sep)	1	1	25 Sep	25 Sep
37.	Oystercatcher	0	11	28	27	138	1	22	11	1	0	0	0	239	69	170	55 (12 May)	39	32	3 Feb	28 Sep
38.	Avocet	0	4	68	0	5	0	0	0	2	0	0	0	79	12	67	41 (9 Mar)	10	8	25 Feb	14 Sep
39.	Grey Plover	0	0	5	14	285	0	0	19	0	0	0	0	323	19	304	241 (12 May)	15	12	16 Mar	21 Aug
40.	Golden Plover	0	0	0	0	0	0	0	1	0	0	0	0	1	1	0	1 (25 Aug)	1	1	25 Aug	25 Aug
41.	Ringed Plover	0	0	0	0	126	0	14	10	8	0	0	0	158	13	145	113 (12 May)	16	13	1 May	11 Sep
42.	Little Ringed Plover	0	0	0	0	1	1	0	0	0	0	0	0	2	0	2	1 (1 May)	2	2	1 May	26 Jun
43.	Kentish Plover	0	0	0	0	0	0	1	0	0	0	0	0	1	1	0	1 (7 Jul)	1	1	7 Jul	7 Jul
44.	Whimbrel	0	0	0	42	22	2	22	20	0	0	0	0	108	47	61	17 (6 Apr)	22	18	6 Apr	25 Aug
45.	Curlew	0	3	32	3	1	11	10	0	0	0	0	0	60	25	35	18 (31 Mar)	17	14	10 Feb	10 Jul
46.	Bar-tailed Godwit	0	0	2	4430	43	0	0	4	0	0	0	0	4479	4	4475	3178 (20 Apr)	12	10	16 Mar	29 Aug
47.	Snipe	0	0	0	0	0	0	0	0	3	0	0	0	3	3	0	3 (1 Sep)	1	1	1 Sep	1 Sep
48.	Grey Phalarope	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (21 Nov)	1	1	21 Nov	21 Nov
49.	Common Sandpiper	0	0	0	0	0	0	1	0	0	0	0	0	1	1	0	1 (14 Jul)	1	1	14 Jul	14 Jul
50.	Green Sandpiper	0	0	0	0	0	1	0	0	0	0	0	0	1	1	0	1 (30 Jun)	1	1	30 Jun	30 Jun
51.	Redshank	0	0	60	1	28	1	16	1	1	0	0	0	108	12	96	59 (31 Mar)	15	12	9 Mar	1 Sep
52.	Spotted Redshank	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (12 May)	1	1	12 May	12 May
53.	Greenshank	0	0	0	0	3	0	2	0	0	0	0	0	5	2	3	3 (1 May)	2	2	1 May	19 Jul
54.	Turnstone	6	1	0	0	8	0	1	1	0	0	0	0	17	1	16	6 (17 Jan)	9	7	17 Jan	14 Aug
55.	Knot	0	0	47	13	260	0	3	5	3	0	2	1	334	11	323	184 (12 May)	20	16	9 Mar	13 Dec
56.	Ruff	0	0	4	0	0	0	0	0	0	0	0	0	4	0	4	4 (31 Mar)	1	1	31 Mar	31 Mar
57.	wader sp.	0	0	0	0	0	0	19	7	0	0	0	0	26	22	4	7 (7 Jul)	9	7	4 Jul	25 Aug
58.	Curlew Sandpiper	0	0	0	0	1	0	2	0	0	0	0	0	3	2	1	2 (27 Jul)	2	2	12 May	27 Jul
59.	Sanderling	7	35	43	26	814	0	9	27	12	7	0	0	980	49	931	572 (12 May)	30	25	17 Jan	30 Oct
60.	Dunlin	2	135	389	6	172	0	6	39	7	1	6	0	763	37	726	118 (17 Feb)	37	30	27 Jan	21 Nov
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Purple Sandpiper	0	0	1	0	0	0	0	0	0	0	4	0	5	4	1	4 (23 Nov)	2	2	9 Mar	23 Nov
62.	Little Stint	0	0	0	0	2	0	0	0	0	0	0	0	2	0	2	1 (1 May)	2	2	1 May	13 May
63.	Calidris sp.	0	2	0	0	45	0	4	31	2	0	0	0	84	33	51	25 (12 May)	16	13	3 Feb	14 Sep
64.	Little Tern	0	0	0	1	40	8	8	27	0	0	0	0	84	38	46	25 (12 May)	15	12	20 Apr	29 Aug
65.	Whiskered Tern	0	0	0	0	0	0	0	1	0	0	0	0	1	1	0	1 (29 Aug)	1	1	29 Aug	29 Aug
66.	Black Tern	0	0	0	9	189	4	15	33	8	0	0	0	258	46	212	141 (12 May)	24	20	14 Apr	14 Sep
67.	White-winged Black Tern	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (1 Sep)	1	1	1 Sep	1 Sep
68.	Arctic Tern	0	0	0	6	229	2	0	0	0	0	0	0	237	0	237	205 (12 May)	9	7	17 Apr	30 Jun
69.	Common/Arctic Tern	0	0	0	846	4597	83	1024	4576	1280	0	0	0	12406	6476	5930	2600 (12 May)	39	32	6 Apr	25 Sep
70.	Common Tern	0	0	1	41	0	509	1261	358	0	0	0	0	2170	1576	594	347 (19 Jul)	17	14	31 Mar	21 Aug
71.	sterna sp.	0	0	0	0	0	0	0	0	0	6	0	0	6	6	0	6 (13 Oct)	1	1	13 Oct	13 Oct
72.	Sandwich Tern	0	0	4	190	522	255	652	2015	939	3	0	0	4580	3436	1144	701 (29 Aug)	54	44	16 Mar	30 Oct
73.	Little Gull	9	85	21	453	238	0	0	3	3	50	2	6	870	123	747	291 (14 Apr)	44	36	2 Jan	20 Dec
74.	Kittiwake	117	130	1	0	1	0	0	0	0	2	747	2	1000	315	685	381 (20 Nov)	23	19	2 Jan	20 Dec
75.	Sabine's Gull	0	0	0	0	0	0	0	0	2	0	0	0	2	2	0	2 (11 Sep)	1	1	11 Sep	11 Sep
76.	Black-headed Gull	45	111	793	61	695	295	6270	1451	351	201	207	89	10569	8118	2451	2707 (19 Jul)	90	74	2 Jan	29 Dec
77.	Mediterranean Gull	0	2	3	6	0	7	24	1	0	0	0	0	43	26	17	7 (19 Jul)	21	17	4 Feb	14 Aug
78.	Common Gull	252	503	1140	339	1012	74	501	231	316	257	507	150	5282	1854	3428	464 (12 May)	91	75	2 Jan	29 Dec
79.	Caspian Gull	2	0	0	0	0	0	0	0	1	0	1	0	4	2	2	2 (3 Jan)	4	3	3 Jan	13 Nov
80.	Great Black-backed Gull	4	5	0	0	25	2	1	0	0	0	0	0	37	11	26	25 (12 May)	7	6	3 Jan	10 Jul
81.	Lesser Black-backed Gull	2	4	1	0	0	0	0	0	0	0	1	0	8	7	1	3 (3 Feb)	6	5	27 Jan	21 Nov
82.	Iceland Gull	0	0	0	0	0	0	0	0	0	1	0	0	1	0	1	1 (30 Oct)	1	1	30 Oct	30 Oct
83.	Long-tailed Skua	0	0	0	0	0	0	0	0	3	0	0	0	3	1	2	3 (11 Sep)	1	1	11 Sep	11 Sep
84.	skua sp.	0	0	0	0	0	0	0	2	2	0	0	0	4	4	0	2 (25 Aug)	4	3	25 Aug	28 Sep
85.	Arctic Skua	0	0	0	2	0	0	0	3	14	3	0	0	22	12	10	4 (11 Sep)	12	10	14 Apr	27 Oct
86.	Great Skua	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (11 Sep)	1	1	11 Sep	11 Sep
87.	Razorbill	4	1	1	0	0	0	0	0	3	0	2	0	11	5	6	4 (2 Jan)	7	6	2 Jan	20 Nov
88.	Razorbill/Guillemot	785	211	13	0	0	0	0	0	15	68	87	6	1185	926	259	304 (2 Jan)	37	30	2 Jan	8 Dec
89.	Little Auk	0	0	0	0	0	0	0	0	0	0	4	1	5	5	0	2 (22 Nov)	5	4	22 Nov	7 Dec
90.	Guillemot	27	51	0	0	0	0	0	0	0	0	0	0	78	75	3	29 (3 Feb)	12	10	2 Jan	10 Feb
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Red-throated Diver	211	104	39	17	4	0	0	1	11	31	52	34	504	157	347	96 (27 Jan)	48	39	2 Jan	29 Dec
92.	Black-throated Diver	0	1	4	8	0	0	0	0	0	0	1	1	15	1	14	7 (20 Apr)	9	7	10 Feb	29 Dec
93.	Great Northern Diver	0	1	1	0	0	0	0	0	0	0	0	0	2	0	2	1 (7 Feb)	2	2	7 Feb	16 Mar
94.	diver sp.	821	535	96	15	0	0	0	0	30	60	263	629	2449	1596	853	362 (4 Dec)	56	46	2 Jan	29 Dec
95.	Leach's Petrel	0	0	0	0	0	0	0	0	0	0	1	0	1	0	1	1 (20 Nov)	1	1	20 Nov	20 Nov
96.	Fulmar	0	0	0	0	1	0	0	0	18	0	2	0	21	8	13	16 (11 Sep)	7	6	12 May	22 Nov
97.	Sooty Shearwater	0	0	0	0	0	0	0	2	5	1	1	0	9	6	3	3 (10 Sep)	9	7	23 Aug	16 Nov
98.	Manx Shearwater	0	0	0	0	0	0	0	0	1	0	0	0	1	0	1	1 (10 Sep)	1	1	10 Sep	10 Sep
99.	Gannet	34	42	148	8	44	0	38	24	138	82	901	355	1814	785	1029	454 (20 Nov)	72	59	2 Jan	29 Dec
100.	Cormorant	665	0	0	0	0	0	0	187	751	0	0	0	1603	816	787	665 (27 Jan)	10	8	27 Jan	25 Sep
101.	Spoonbill	0	0	0	0	5	0	0	0	5	36	0	0	46	41	5	23 (30 Oct)	5	4	12 May	30 Oct
102.	Great White Egret	0	0	0	0	0	0	0	0	8	0	1	0	9	9	0	8 (1 Sep)	2	2	1 Sep	23 Nov
103.	Grey Heron	0	0	0	0	2	0	6	3	0	0	0	0	11	7	4	3 (11 Jul)	6	5	12 May	6 Aug
104.	Sparrowhawk	0	0	0	0	0	0	0	0	0	2	0	0	2	2	0	2 (27 Oct)	1	1	27 Oct	27 Oct
105.	Hen Harrier	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (27 Oct)	1	1	27 Oct	27 Oct
106.	Rough-legged Buzzard	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (27 Oct)	1	1	27 Oct	27 Oct
107.	Peregrine	0	0	0	0	0	0	0	0	0	0	2	0	2	2	0	2 (13 Nov)	1	1	13 Nov	13 Nov
108.	Skylark	0	0	2	0	0	0	0	0	0	0	0	0	2	0	2	2 (9 Mar)	1	1	9 Mar	9 Mar
109.	Swallow	0	0	0	0	4	0	0	0	0	0	0	0	4	4	0	4 (13 May)	1	1	13 May	13 May
110.	House Martin	0	0	0	0	2	0	0	0	0	0	0	0	2	2	0	2 (13 May)	1	1	13 May	13 May
111.	Starling	0	30	11	0	0	0	0	0	0	0	0	0	41	33	8	30 (25 Feb)	4	3	25 Feb	31 Mar
112.	Blue-headed Wagtail	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (22 Apr)	1	1	22 Apr	22 Apr
113.	Grey-headed Wagtail	0	0	0	0	2	0	0	0	0	0	0	0	2	0	2	2 (12 May)	1	1	12 May	12 May
114.	White Wagtail	0	0	0	3	2	0	0	0	0	0	0	0	5	2	3	3 (22 Apr)	2	2	22 Apr	13 May
115.	alba wagtail sp.	0	0	1	0	0	0	0	0	0	0	0	0	1	1	0	1 (23 Mar)	1	1	23 Mar	23 Mar
116.	Rock Pipit	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (16 Mar)	1	1	16 Mar	16 Mar
117.	Snow Bunting	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (11 Nov)	1	1	11 Nov	11 Nov
	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	7	33	4	0	0	0	0	4	3	0	2	2	55	24	31	10 (28 Feb)	23	19	2 Jan	13 Dec
2.	Humpback whale	1	0	0	0	0	0	0	0	0	0	0	0	1	0	1	1 (19 Jan)	1	1	19 Jan	19 Jan
3.	Common Seal	0	0	0	0	0	0	0	1	0	0	0	0	1	0	1	1 (25 Aug)	1	1	25 Aug	25 Aug
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	8355	13007	19738	25215	21828	1689	11982	9315	4669	1422	6600	6062	129882	85528	44354		100	82
	Observation hours	9:10	17:35	16:30	17:15	12:00	5:00	18:30	18:45	17:00	8:05	17:10	9:30	166:30

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Trektellen

Totals Castricum aan Zee (zeetrek) 2024