Also present

Totals Castricum aan Zee (zeetrek) 2024

	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	44	521	1120	56	1299	0	0	0	3040	1	3039	1293 (13 May)	41	23	3 Jan	13 May
2.	Pale-bellied Brent Goose	0	1	0	0	6	0	0	0	7	0	7	6 (13 May)	4	2	17 Feb	13 May
3.	Canada Goose	1	0	0	0	0	0	0	0	1	0	1	1 (27 Jan)	2	1	27 Jan	27 Jan
4.	Barnacle Goose	98	0	489	886	299	0	5	0	1777	96	1681	846 ( 6 Apr)	20	11	17 Jan	19 Jul
5.	Greylag Goose	5	38	97	13	37	1	49	0	240	74	166	54 ( 3 Mar)	39	22	27 Jan	31 Jul
6.	goose sp.	25	2	0	0	0	0	0	0	27	0	27	25 (28 Jan)	4	2	28 Jan	25 Feb
7.	Pink-footed Goose	290	752	0	0	0	0	0	0	1042	0	1042	752 (10 Feb)	5	3	27 Jan	10 Feb
8.	Mute Swan	0	0	0	2	7	0	0	0	9	2	7	7 ( 2 May)	4	2	6 Apr	2 May
9.	Egyptian Goose	1	26	9	0	2	0	1	0	39	4	35	15 ( 7 Feb)	14	8	28 Jan	19 Jul
10.	Shelduck	2	20	56	20	40	284	425	23	870	73	797	211 (26 Jun)	68	38	2 Jan	25 Aug
11.	Garganey	0	0	2	0	0	0	0	0	2	0	2	2 ( 9 Mar)	2	1	9 Mar	9 Mar
12.	Shoveler	0	17	214	16	18	0	5	0	270	29	241	148 (31 Mar)	25	14	28 Feb	19 Jul
13.	Gadwall	0	0	8	2	2	12	22	7	53	13	40	14 (10 Jul)	18	10	3 Mar	29 Aug
14.	Wigeon	149	188	632	67	0	2	0	2	1040	191	849	375 (16 Mar)	38	21	2 Jan	29 Aug
15.	Mallard	0	0	6	0	0	0	3	1	10	2	8	2 ( 9 Mar)	11	6	9 Mar	29 Aug
16.	Pintail	0	41	99	0	2	0	0	0	142	2	140	39 (16 Mar)	18	10	10 Feb	1 May
17.	Teal	26	140	408	173	11	0	1	43	802	132	670	144 (16 Mar)	59	33	2 Jan	29 Aug
18.	Pochard	0	19	0	0	0	0	1	0	20	19	1	19 (25 Feb)	4	2	25 Feb	17 Jul
19.	Tufted Duck	0	0	12	3	2	0	1	1	19	8	11	7 ( 3 Mar)	13	7	3 Mar	10 Aug
20.	Scaup	1	1	2	0	1	0	0	0	5	3	2	2 ( 8 Mar)	7	4	28 Jan	1 May
21.	King Eider	0	0	1	0	0	0	0	0	1	0	1	1 (23 Mar)	2	1	23 Mar	23 Mar
22.	Eider	13	75	86	47	43	0	0	0	264	155	109	25 (16 Mar)	50	28	17 Jan	13 May
23.	Velvet Scoter	171	369	295	230	45	0	0	0	1110	1058	52	225 (14 Apr)	54	30	2 Jan	18 May
24.	Common Scoter	4321	8716	13194	17109	10427	126	1525	128	55546	48322	7224	13012 (14 Apr)	95	53	2 Jan	29 Aug
25.	Long-tailed Duck	0	1	1	0	0	0	0	0	2	1	1	1 (21 Feb)	4	2	21 Feb	31 Mar
26.	Red-breasted Merganser	21	10	32	16	16	0	4	0	99	20	79	15 (19 Jan)	41	23	2 Jan	4 Jul
27.	Swift	0	0	0	0	0	7	0	0	7	2	5	5 (26 Jun)	4	2	20 Jun	26 Jun
28.	Stock Dove	0	0	0	1	0	0	0	0	1	0	1	1 (22 Apr)	2	1	22 Apr	22 Apr
29.	Red-necked Grebe	0	1	0	0	0	0	0	0	1	0	1	1 (10 Feb)	2	1	10 Feb	10 Feb
30.	Great Crested Grebe	186	28	11	6	2	1	8	11	253	203	50	112 ( 3 Jan)	57	32	2 Jan	29 Aug
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Slavonian Grebe	0	1	0	0	0	0	0	0	1	0	1	1 (10 Feb)	2	1	10 Feb	10 Feb
32.	Oystercatcher	0	11	28	27	138	1	22	11	238	68	170	55 (12 May)	55	31	3 Feb	29 Aug
33.	Avocet	0	4	68	0	5	0	0	0	77	12	65	41 ( 9 Mar)	13	7	25 Feb	12 May
34.	Grey Plover	0	0	5	14	285	0	0	19	323	19	304	241 (12 May)	21	12	16 Mar	21 Aug
35.	Golden Plover	0	0	0	0	0	0	0	1	1	1	0	1 (25 Aug)	2	1	25 Aug	25 Aug
36.	Ringed Plover	0	0	0	0	126	0	14	10	150	9	141	113 (12 May)	18	10	1 May	29 Aug
37.	Little Ringed Plover	0	0	0	0	1	1	0	0	2	0	2	1 ( 1 May)	4	2	1 May	26 Jun
38.	Kentish Plover	0	0	0	0	0	0	1	0	1	1	0	1 ( 7 Jul)	2	1	7 Jul	7 Jul
39.	Whimbrel	0	0	0	42	22	2	22	20	108	47	61	17 ( 6 Apr)	32	18	6 Apr	25 Aug
40.	Curlew	0	3	32	3	1	11	10	0	60	25	35	18 (31 Mar)	25	14	10 Feb	10 Jul
41.	Bar-tailed Godwit	0	0	2	4430	43	0	0	4	4479	4	4475	3178 (20 Apr)	18	10	16 Mar	29 Aug
42.	Common Sandpiper	0	0	0	0	0	0	1	0	1	1	0	1 (14 Jul)	2	1	14 Jul	14 Jul
43.	Green Sandpiper	0	0	0	0	0	1	0	0	1	1	0	1 (30 Jun)	2	1	30 Jun	30 Jun
44.	Redshank	0	0	60	1	28	1	16	1	107	12	95	59 (31 Mar)	20	11	9 Mar	29 Aug
45.	Spotted Redshank	0	0	0	0	1	0	0	0	1	0	1	1 (12 May)	2	1	12 May	12 May
46.	Greenshank	0	0	0	0	3	0	2	0	5	2	3	3 ( 1 May)	4	2	1 May	19 Jul
47.	Turnstone	6	1	0	0	8	0	1	1	17	1	16	6 (17 Jan)	13	7	17 Jan	14 Aug
48.	Knot	0	0	47	13	260	0	3	5	328	8	320	184 (12 May)	20	11	9 Mar	23 Aug
49.	Ruff	0	0	4	0	0	0	0	0	4	0	4	4 (31 Mar)	2	1	31 Mar	31 Mar
50.	wader sp.	0	0	0	0	0	0	19	7	26	22	4	7 ( 7 Jul)	13	7	4 Jul	25 Aug
51.	Curlew Sandpiper	0	0	0	0	1	0	2	0	3	2	1	2 (27 Jul)	4	2	12 May	27 Jul
52.	Sanderling	7	35	43	26	814	0	9	27	961	46	915	572 (12 May)	39	22	17 Jan	29 Aug
53.	Dunlin	2	135	389	6	172	0	6	39	749	31	718	118 (17 Feb)	43	24	27 Jan	29 Aug
54.	Purple Sandpiper	0	0	1	0	0	0	0	0	1	0	1	1 ( 9 Mar)	2	1	9 Mar	9 Mar
55.	Little Stint	0	0	0	0	2	0	0	0	2	0	2	1 ( 1 May)	4	2	1 May	13 May
56.	Calidris sp.	0	2	0	0	45	0	4	31	82	33	49	25 (12 May)	20	11	3 Feb	25 Aug
57.	Little Tern	0	0	0	1	40	8	8	27	84	38	46	25 (12 May)	21	12	20 Apr	29 Aug
58.	Whiskered Tern	0	0	0	0	0	0	0	1	1	1	0	1 (29 Aug)	2	1	29 Aug	29 Aug
59.	Black Tern	0	0	0	9	189	4	15	33	250	44	206	141 (12 May)	30	17	14 Apr	29 Aug
60.	Arctic Tern	0	0	0	6	229	2	0	0	237	0	237	205 (12 May)	13	7	17 Apr	30 Jun
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Common/Arctic Tern	0	0	0	846	4597	83	1024	4576	11126	5374	5752	2600 (12 May)	46	26	6 Apr	29 Aug
62.	Common Tern	0	0	1	41	0	509	1261	358	2170	1576	594	347 (19 Jul)	25	14	31 Mar	21 Aug
63.	Sandwich Tern	0	0	4	190	522	255	652	2015	3638	2548	1090	701 (29 Aug)	63	35	16 Mar	29 Aug
64.	Little Gull	9	85	21	453	238	0	0	3	809	98	711	291 (14 Apr)	50	28	2 Jan	29 Aug
65.	Kittiwake	117	130	1	0	1	0	0	0	249	235	14	58 ( 4 Feb)	20	11	2 Jan	12 May
66.	Black-headed Gull	45	111	793	61	695	295	6270	1451	9721	7456	2265	2707 (19 Jul)	93	52	2 Jan	29 Aug
67.	Mediterranean Gull	0	2	3	6	0	7	24	1	43	26	17	7 (19 Jul)	30	17	4 Feb	14 Aug
68.	Common Gull	252	503	1140	339	1012	74	501	231	4052	1224	2828	464 (12 May)	89	50	2 Jan	29 Aug
69.	Caspian Gull	2	0	0	0	0	0	0	0	2	2	0	2 ( 3 Jan)	2	1	3 Jan	3 Jan
70.	Great Black-backed Gull	4	5	0	0	25	2	1	0	37	11	26	25 (12 May)	11	6	3 Jan	10 Jul
71.	Lesser Black-backed Gull	2	4	1	0	0	0	0	0	7	6	1	3 ( 3 Feb)	7	4	27 Jan	4 Mar
72.	skua sp.	0	0	0	0	0	0	0	2	2	2	0	2 (25 Aug)	2	1	25 Aug	25 Aug
73.	Arctic Skua	0	0	0	2	0	0	0	3	5	3	2	2 (25 Aug)	7	4	14 Apr	25 Aug
74.	Razorbill	4	1	1	0	0	0	0	0	6	5	1	4 ( 2 Jan)	5	3	2 Jan	16 Mar
75.	Razorbill/Guillemot	785	211	13	0	0	0	0	0	1009	874	135	304 ( 2 Jan)	23	13	2 Jan	16 Mar
76.	Guillemot	27	51	0	0	0	0	0	0	78	75	3	29 ( 3 Feb)	18	10	2 Jan	10 Feb
77.	Red-throated Diver	211	104	39	17	4	0	0	1	376	91	285	96 (27 Jan)	43	24	2 Jan	25 Aug
78.	Black-throated Diver	0	1	4	8	0	0	0	0	13	0	13	7 (20 Apr)	9	5	10 Feb	20 Apr
79.	Great Northern Diver	0	1	1	0	0	0	0	0	2	0	2	1 ( 7 Feb)	4	2	7 Feb	16 Mar
80.	diver sp.	821	535	96	15	0	0	0	0	1467	797	670	323 ( 2 Jan)	43	24	2 Jan	22 Apr
81.	Fulmar	0	0	0	0	1	0	0	0	1	1	0	1 (12 May)	2	1	12 May	12 May
82.	Sooty Shearwater	0	0	0	0	0	0	0	2	2	2	0	1 (23 Aug)	4	2	23 Aug	25 Aug
83.	Gannet	34	42	148	8	44	0	38	24	338	118	220	136 (16 Mar)	61	34	2 Jan	29 Aug
84.	Cormorant	665	0	0	0	0	0	0	187	852	331	521	665 (27 Jan)	5	3	27 Jan	29 Aug
85.	Spoonbill	0	0	0	0	5	0	0	0	5	0	5	5 (12 May)	2	1	12 May	12 May
86.	Grey Heron	0	0	0	0	2	0	6	3	11	7	4	3 (11 Jul)	9	5	12 May	6 Aug
87.	Skylark	0	0	2	0	0	0	0	0	2	0	2	2 ( 9 Mar)	2	1	9 Mar	9 Mar
88.	Swallow	0	0	0	0	4	0	0	0	4	4	0	4 (13 May)	2	1	13 May	13 May
89.	House Martin	0	0	0	0	2	0	0	0	2	2	0	2 (13 May)	2	1	13 May	13 May
90.	Starling	0	30	11	0	0	0	0	0	41	33	8	30 (25 Feb)	5	3	25 Feb	31 Mar
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Blue-headed Wagtail	0	0	0	1	0	0	0	0	1	0	1	1 (22 Apr)	2	1	22 Apr	22 Apr
92.	Grey-headed Wagtail	0	0	0	0	2	0	0	0	2	0	2	2 (12 May)	2	1	12 May	12 May
93.	White Wagtail	0	0	0	3	2	0	0	0	5	2	3	3 (22 Apr)	4	2	22 Apr	13 May
94.	alba wagtail sp.	0	0	1	0	0	0	0	0	1	1	0	1 (23 Mar)	2	1	23 Mar	23 Mar
95.	Rock Pipit	0	0	1	0	0	0	0	0	1	0	1	1 (16 Mar)	2	1	16 Mar	16 Mar
	Other species
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Harbour Porpoise	7	33	4	0	0	0	0	4	48	22	26	10 (28 Feb)	25	14	2 Jan	23 Aug
2.	Humpback whale	1	0	0	0	0	0	0	0	1	0	1	1 (19 Jan)	2	1	19 Jan	19 Jan
3.	Common Seal	0	0	0	0	0	0	0	1	1	0	1	1 (25 Aug)	2	1	25 Aug	25 Aug
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	8355	13007	19738	25215	21828	1689	11982	9315	111129	71764	39365		100	56
	Observation hours	9:10	17:35	16:30	17:15	12:00	5:00	18:30	18:45	114:45

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Totals Castricum aan Zee (zeetrek) 2024