Totals Huisduinen (zeetrek) 2025

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	166	622	4807	1837	5911	0	0	0	365	4833	799	532	19872	6233	13639	2667 (10 Oct)	64	101	1 Jan	31 Dec
2.	Canada Goose	0	0	1	0	17	0	0	0	17	0	3	0	38	0	38	17 (31 May)	3	5	3 Mar	15 Nov
3.	Barnacle Goose	0	76	910	494	31	23	0	0	82	16	52	86	1770	125	1645	695 (8 Mar)	18	29	5 Feb	24 Dec
4.	Greylag Goose	14	459	285	371	706	11	5	59	337	265	76	84	2672	721	1951	354 (15 Feb)	53	85	13 Jan	29 Dec
5.	Domestic Goose	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (10 May)	1	1	10 May	10 May
6.	Tundra Bean Goose	0	0	0	0	0	0	0	0	0	2	0	26	28	26	2	26 (24 Dec)	1	2	31 Oct	24 Dec
7.	Eurasian White-fronted Goose	0	4	0	0	0	0	0	0	0	0	0	0	4	0	4	4 (15 Feb)	1	1	15 Feb	15 Feb
8.	Mute Swan	0	0	0	5	1	0	0	0	0	0	2	0	8	2	6	3 (30 Apr)	3	4	28 Apr	15 Nov
9.	Whooper Swan	0	0	0	0	0	0	0	0	0	6	0	0	6	6	0	6 (18 Oct)	1	1	18 Oct	18 Oct
10.	Egyptian Goose	0	23	53	85	35	3	2	0	19	37	3	0	260	61	199	23 (8 Mar)	28	44	3 Feb	15 Nov
11.	Shelduck	7	14	95	163	122	112	32	39	23	13	0	6	626	64	562	53 (7 Apr)	46	73	29 Jan	24 Dec
12.	Shoveler	0	24	123	163	2	0	0	0	0	0	0	0	312	3	309	61 (4 Apr)	13	21	19 Feb	7 May
13.	Gadwall	0	11	11	19	30	0	0	2	11	5	6	0	95	51	44	11 (9 May)	14	22	7 Feb	15 Nov
14.	Wigeon	226	197	3392	204	0	0	0	0	146	18	76	563	4822	216	4606	1476 (12 Mar)	27	43	3 Jan	27 Dec
15.	Mallard	0	0	3	9	10	0	0	0	1	4	0	0	27	11	16	8 (12 May)	6	10	31 Mar	15 Oct
16.	Pintail	0	12	49	185	0	0	0	0	0	0	0	0	246	0	246	167 (5 Apr)	4	7	28 Feb	19 Apr
17.	Teal	14	112	2129	1036	0	0	0	28	70	29	61	33	3512	72	3440	597 (9 Apr)	36	57	27 Jan	17 Dec
18.	duck sp.	1	1	1	5	0	0	0	0	1	2	5	2	18	5	13	5 (5 Nov)	6	9	10 Jan	26 Dec
19.	Tufted Duck	5	0	3	0	8	0	2	0	4	0	11	5	38	10	28	11 (15 Nov)	10	16	3 Jan	26 Dec
20.	Scaup	0	0	5	0	0	0	0	0	0	2	0	0	7	0	7	2 (10 Mar)	3	4	10 Mar	18 Oct
21.	Eider	17	290	716	1044	816	87	2	0	82	229	58	470	3811	2065	1746	301 (29 Dec)	65	103	3 Jan	31 Dec
22.	Velvet Scoter	1	0	7	0	0	0	0	0	11	6	0	0	25	15	10	9 (10 Sep)	4	6	6 Jan	30 Oct
23.	Common Scoter	77	198	2327	530	233	149	209	278	1503	614	174	441	6733	1406	5327	1349 (29 Mar)	80	127	1 Jan	31 Dec
24.	Goldeneye	1	1	2	4	0	0	0	0	0	1	44	1	54	6	48	44 (15 Nov)	5	8	8 Jan	24 Dec
25.	Goosander	0	2	0	0	0	0	0	0	0	0	0	0	2	1	1	1 (5 Feb)	1	2	5 Feb	15 Feb
26.	Red-breasted Merganser	8	17	189	168	6	0	0	0	18	62	31	10	509	106	403	45 (4 Apr)	42	67	6 Jan	31 Dec
27.	Swift	0	0	0	0	9	116	3	0	5	0	0	0	133	38	95	108 (21 Jun)	5	8	10 May	7 Sep
28.	Stock Dove	14	0	6	0	3	0	0	0	0	0	0	0	23	18	5	14 (23 Jan)	3	4	23 Jan	3 May
29.	Woodpigeon	0	2	11	24	1	0	0	0	5	74	2	0	119	84	35	33 (10 Oct)	21	33	21 Feb	26 Nov
30.	Collared Dove	0	0	4	0	10	0	0	0	0	0	0	0	14	8	6	5 (31 May)	3	4	17 Mar	31 May
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Great Crested Grebe	33	31	22	17	17	9	8	5	26	11	41	59	279	126	153	25 (27 Dec)	50	80	1 Jan	31 Dec
32.	grebe sp.	0	0	0	0	0	0	0	0	0	0	0	1	1	1	0	1 (8 Dec)	1	1	8 Dec	8 Dec
33.	Oystercatcher	56	80	547	807	571	203	222	209	239	295	109	65	3403	811	2592	175 (18 Oct)	98	156	3 Jan	31 Dec
34.	Avocet	0	0	163	14	4	0	0	0	1	0	0	0	182	0	182	67 (8 Mar)	6	10	8 Mar	26 Sep
35.	Grey Plover	0	0	33	147	455	0	8	3	95	0	0	8	749	64	685	218 (5 May)	16	26	17 Mar	24 Dec
36.	Golden Plover	0	0	0	0	0	0	0	0	18	0	0	0	18	18	0	18 (24 Sep)	1	1	24 Sep	24 Sep
37.	Ringed Plover	0	0	1	2	9	0	3	0	3	0	0	0	18	0	18	5 (19 May)	6	10	21 Mar	24 Sep
38.	Lapwing	0	0	0	3	2	28	0	0	19	1	75	1	129	58	71	44 (3 Nov)	6	10	5 Apr	1 Dec
39.	Kentish Plover	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (3 May)	1	1	3 May	3 May
40.	Whimbrel	0	0	0	587	140	0	20	56	14	0	0	0	817	84	733	228 (19 Apr)	17	27	2 Apr	7 Sep
41.	Curlew	1	2	33	12	32	3	6	1	16	9	6	12	133	44	89	14 (2 May)	28	45	15 Jan	29 Dec
42.	Bar-tailed Godwit	0	0	0	241	189	0	0	0	9	0	0	0	439	9	430	175 (5 May)	6	10	19 Apr	20 Sep
43.	Black-tailed Godwit	0	0	1	2	0	0	0	0	0	0	0	0	3	0	3	2 (25 Apr)	1	2	10 Mar	25 Apr
44.	Icelandic Black-tailed Godwit	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (26 Apr)	1	1	26 Apr	26 Apr
45.	Snipe	0	0	0	0	0	0	0	1	0	0	0	0	1	1	0	1 (9 Aug)	1	1	9 Aug	9 Aug
46.	Grey Phalarope	0	0	0	0	0	0	0	0	0	0	2	0	2	0	2	2 (17 Nov)	1	1	17 Nov	17 Nov
47.	Common Sandpiper	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (4 Apr)	1	1	4 Apr	4 Apr
48.	Green Sandpiper	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (2 Apr)	1	1	2 Apr	2 Apr
49.	Wood Sandpiper	0	0	0	2	1	0	0	0	0	0	0	0	3	0	3	2 (30 Apr)	1	2	30 Apr	10 May
50.	Redshank	1	0	2	7	7	2	3	9	3	0	0	1	35	5	30	6 (22 Aug)	14	23	29 Jan	26 Dec
51.	Spotted Redshank	0	0	0	0	2	0	0	1	2	0	0	0	5	2	3	2 (2 May)	2	3	2 May	7 Sep
52.	Greenshank	0	0	0	3	3	0	0	0	0	0	0	0	6	1	5	3 (26 Apr)	3	4	26 Apr	14 May
53.	Turnstone	0	3	15	7	22	0	1	0	20	8	0	14	90	22	68	12 (26 Dec)	15	24	15 Feb	27 Dec
54.	Knot	0	0	0	85	1341	0	0	0	29	0	0	0	1455	29	1426	638 (5 May)	9	14	4 Apr	14 Sep
55.	Ruff	0	0	8	1	4	0	0	0	0	0	0	0	13	0	13	8 (29 Mar)	2	3	29 Mar	10 May
56.	wader sp.	0	1	0	27	2	0	0	1	1	0	0	0	32	1	31	24 (9 Apr)	4	6	21 Feb	22 Sep
57.	small wader	0	0	0	0	4	0	0	0	1	0	0	0	5	0	5	4 (10 May)	1	2	10 May	22 Sep
58.	Sanderling	0	15	102	260	1430	63	24	21	52	4	0	3	1974	33	1941	401 (5 May)	34	54	17 Feb	26 Dec
59.	Dunlin	4	25	1861	2786	168	0	19	0	65	108	5	0	5041	127	4914	1645 (4 Apr)	34	54	8 Jan	17 Nov
60.	Purple Sandpiper	0	0	0	0	0	0	0	0	0	1	1	1	3	1	2	1 (4 Oct)	2	3	4 Oct	26 Dec
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Little Tern	0	0	0	91	505	79	77	117	26	0	0	0	895	239	656	78 (5 May)	36	58	14 Apr	22 Sep
62.	Gull-billed Tern	0	0	0	0	4	0	0	0	0	0	0	0	4	0	4	2 (10 May)	2	3	5 May	12 May
63.	Black Tern	0	0	0	23	128	0	291	670	230	0	0	0	1342	633	709	236 (23 Aug)	26	42	16 Apr	22 Sep
64.	Arctic Tern	0	0	0	34	68	2	2	20	0	2	0	0	128	20	108	25 (3 May)	11	18	14 Apr	4 Oct
65.	Common/Arctic Tern	0	0	0	51	45	0	4	56	37	3	0	0	196	72	124	41 (9 Aug)	8	12	19 Apr	4 Oct
66.	Common Tern	0	0	3	1659	4700	1269	1580	2110	726	36	0	0	12083	3758	8325	854 (2 May)	55	87	31 Mar	30 Oct
67.	sterna sp.	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (12 Apr)	1	1	12 Apr	12 Apr
68.	Sandwich Tern	0	0	179	10014	14047	3095	1908	2582	2032	125	8	0	33990	13421	20569	2612 (31 May)	66	105	8 Mar	15 Nov
69.	Little Gull	2	1	302	582	278	0	7	7	3	59	8	1	1250	81	1169	270 (16 Mar)	30	48	10 Jan	19 Dec
70.	Kittiwake	113	0	0	1	0	0	0	1	1	27	31	39	213	141	72	43 (8 Jan)	11	18	1 Jan	31 Dec
71.	Sabine's Gull	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (6 Oct)	1	1	6 Oct	6 Oct
72.	Bonaparte's Gull	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (27 Sep)	1	1	27 Sep	27 Sep
73.	Black-headed Gull	491	630	1630	1673	1900	422	3488	1048	1286	1271	460	207	14506	6532	7974	962 (12 Jul)	99	158	1 Jan	31 Dec
74.	Mediterranean Gull	0	0	0	2	1	12	2	0	0	0	0	0	17	12	5	6 (18 Jun)	5	8	19 Apr	9 Jul
75.	Common Gull	540	251	673	934	441	163	271	132	179	356	214	212	4366	1926	2440	278 (11 Apr)	99	157	1 Jan	31 Dec
76.	Caspian Gull	0	0	0	1	1	0	0	0	1	0	0	1	4	4	0	1 (14 Apr)	3	4	14 Apr	13 Dec
77.	Herring Gull	0	0	0	0	8	0	0	0	0	0	0	0	8	0	8	8 (10 May)	1	1	10 May	10 May
78.	Great Black-backed Gull	148	66	200	125	112	50	59	91	303	499	180	250	2083	1124	959	142 (4 Oct)	100	159	1 Jan	31 Dec
79.	Lesser Black-backed Gull	15	28	1358	2162	4087	2002	3070	806	790	475	39	21	14853	4724	10129	1032 (7 Jul)	89	141	1 Jan	31 Dec
80.	Long-tailed Skua	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (5 Sep)	1	1	5 Sep	5 Sep
81.	Arctic Skua	0	0	0	0	2	0	1	8	15	31	0	1	58	17	41	27 (4 Oct)	12	19	2 May	31 Dec
82.	Pomarine Skua	0	0	0	0	1	0	0	1	2	0	0	0	4	3	1	1 (31 May)	3	4	31 May	20 Sep
83.	Great Skua	0	0	0	0	0	0	0	0	1	1	0	0	2	2	0	1 (10 Sep)	1	2	10 Sep	6 Oct
84.	Razorbill	0	0	0	0	0	0	0	0	0	1	2	1	4	1	3	2 (17 Nov)	2	3	22 Oct	27 Dec
85.	Razorbill/Guillemot	0	0	0	0	0	0	0	0	1	16	6	9	32	17	15	8 (24 Dec)	7	11	12 Sep	24 Dec
86.	Little Auk	0	0	0	0	0	0	0	0	0	0	2	0	2	1	1	1 (3 Nov)	1	2	3 Nov	15 Nov
87.	Guillemot	0	0	1	0	0	0	0	0	7	26	10	4	48	17	31	8 (24 Oct)	13	21	31 Mar	24 Dec
88.	Red-throated Diver	29	13	48	13	2	0	0	2	37	52	24	120	340	129	211	71 (13 Dec)	53	84	1 Jan	31 Dec
89.	Black-throated Diver	1	1	15	5	0	0	0	0	0	0	3	4	29	3	26	6 (29 Mar)	12	19	23 Jan	29 Dec
90.	diver sp.	0	0	11	0	0	0	0	0	4	0	1	9	25	8	17	9 (29 Mar)	5	8	16 Mar	31 Dec
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Sooty Shearwater	0	0	0	0	0	0	0	0	1	1	0	0	2	2	0	1 (17 Sep)	1	2	17 Sep	4 Oct
92.	Bulwer's Petrel	1	0	0	0	0	0	0	0	0	0	0	0	1	0	1	1 (1 Jan)	1	1	1 Jan	1 Jan
93.	Gannet	10	8	160	15	13	14	13	29	135	447	16	354	1214	497	717	217 (20 Oct)	48	77	1 Jan	31 Dec
94.	Cormorant	749	370	1921	3891	8134	3994	24118	411	474	595	389	923	45969	27482	18487	13394 (14 Jul)	100	159	1 Jan	31 Dec
95.	Shag	1	0	0	0	0	0	0	0	0	0	0	0	1	1	0	1 (29 Jan)	1	1	29 Jan	29 Jan
96.	Spoonbill	0	0	0	4	6	1	0	2	1	0	0	1	15	5	10	3 (5 Apr)	6	10	5 Apr	26 Dec
97.	Little Egret	0	0	0	0	1	0	0	0	1	0	0	0	2	1	1	1 (14 May)	1	2	14 May	7 Sep
98.	Great White Egret	0	0	3	0	1	0	1	0	0	0	0	0	5	2	3	2 (22 Mar)	3	4	3 Mar	21 Jul
99.	Grey Heron	0	0	3	5	0	0	2	3	10	9	1	0	33	23	10	7 (7 Sep)	11	17	10 Mar	24 Nov
100.	Sparrowhawk	0	0	0	0	0	0	0	2	1	3	0	0	6	3	3	2 (31 Oct)	3	5	4 Aug	31 Oct
101.	Goshawk	0	0	0	0	1	0	0	0	0	0	0	0	1	0	1	1 (10 May)	1	1	10 May	10 May
102.	Marsh Harrier	0	0	1	1	2	0	0	2	2	0	0	0	8	5	3	1 (17 Mar)	5	8	17 Mar	20 Sep
103.	Hen Harrier	1	0	0	0	1	0	0	0	0	0	0	0	2	1	1	1 (29 Jan)	1	2	29 Jan	31 May
104.	White-tailed Eagle	0	0	1	1	1	0	0	0	0	1	0	0	4	3	1	1 (19 Mar)	3	4	19 Mar	30 Oct
105.	Common Buzzard	0	0	1	1	0	0	0	0	1	0	0	0	3	1	2	1 (22 Mar)	2	3	22 Mar	7 Sep
106.	Great Spotted Woodpecker	0	0	0	0	0	0	0	0	1	1	0	0	2	1	1	1 (6 Sep)	1	2	6 Sep	15 Oct
107.	Green Woodpecker	0	0	0	0	0	1	0	0	0	0	0	0	1	1	0	1 (21 Jun)	1	1	21 Jun	21 Jun
108.	Kestrel	0	0	0	1	0	0	1	2	5	4	0	1	14	9	5	3 (7 Sep)	6	9	30 Apr	13 Dec
109.	Peregrine	0	0	0	0	0	0	0	0	1	1	0	0	2	2	0	1 (14 Sep)	1	2	14 Sep	30 Oct
110.	Jay	0	0	0	0	0	0	0	0	0	2	0	0	2	2	0	1 (17 Oct)	1	2	17 Oct	31 Oct
111.	Magpie	0	0	14	0	0	0	0	0	0	4	0	0	18	9	9	7 (22 Mar)	2	3	22 Mar	17 Oct
112.	Jackdaw	0	0	11	0	8	0	0	0	3	0	0	0	22	3	19	8 (14 May)	3	4	21 Mar	27 Sep
113.	Rook	0	0	1	0	0	0	0	0	0	0	0	0	1	0	1	1 (14 Mar)	1	1	14 Mar	14 Mar
114.	Carrion Crow	0	0	12	29	17	0	1	0	2	4	0	0	65	20	45	9 (31 May)	16	26	5 Mar	17 Oct
115.	Skylark	0	0	0	0	0	0	0	0	0	13	0	0	13	11	2	7 (22 Oct)	3	4	15 Oct	30 Oct
116.	Sand Martin	0	0	0	18	1	0	2	0	7	0	0	0	28	0	28	7 (26 Sep)	6	9	2 Apr	26 Sep
117.	Swallow	0	0	0	186	278	8	8	12	578	2	0	0	1072	283	789	293 (7 Sep)	26	42	4 Apr	15 Oct
118.	House Martin	0	0	0	4	4	0	1	6	30	0	0	0	45	33	12	20 (6 Sep)	6	9	4 Apr	26 Sep
119.	Long-tailed Tit	0	0	0	0	2	0	0	0	0	0	0	0	2	2	0	2 (9 May)	1	1	9 May	9 May
120.	Goldcrest	0	0	0	0	0	0	0	0	0	2	0	0	2	2	0	1 (20 Oct)	1	2	20 Oct	31 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
121.	Starling	0	0	195	172	4	0	0	0	21	13709	3488	122	17711	17230	481	10207 (30 Oct)	18	28	16 Mar	3 Dec
122.	Song Thrush	0	0	0	0	0	0	0	0	0	2	1	0	3	1	2	2 (15 Oct)	1	2	15 Oct	15 Nov
123.	Mistle Thrush	0	0	0	0	0	0	0	0	0	26	0	0	26	26	0	26 (31 Oct)	1	1	31 Oct	31 Oct
124.	Redwing	0	0	0	0	0	0	0	0	0	0	2	0	2	2	0	2 (10 Nov)	1	1	10 Nov	10 Nov
125.	Blackbird	0	0	1	0	0	0	0	0	0	0	7	0	8	5	3	7 (15 Nov)	1	2	21 Mar	15 Nov
126.	Fieldfare	0	0	0	0	0	0	0	0	0	6	1	0	7	7	0	6 (31 Oct)	1	2	31 Oct	3 Nov
127.	Ring Ouzel	0	0	0	2	0	0	0	0	0	0	0	0	2	0	2	1 (5 Apr)	1	2	5 Apr	30 Apr
128.	Robin	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (12 Apr)	1	1	12 Apr	12 Apr
129.	Tree Sparrow	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (20 Sep)	1	1	20 Sep	20 Sep
130.	Dunnock	0	0	1	0	0	0	0	0	0	6	0	0	7	3	4	3 (15 Oct)	3	4	3 Mar	31 Oct
131.	Blue-headed Wagtail	0	0	0	3	25	0	1	0	1	2	0	0	32	2	30	25 (3 May)	4	6	25 Apr	31 Oct
132.	Yellow Wagtail (flavissima)	0	0	0	0	15	0	0	0	0	0	0	0	15	0	15	15 (3 May)	1	1	3 May	3 May
133.	Yellow wagtail sp.	0	0	0	0	25	0	0	0	0	0	0	0	25	0	25	16 (3 May)	3	5	3 May	12 May
134.	Grey Wagtail	0	0	0	0	0	0	0	0	3	0	0	0	3	0	3	3 (24 Sep)	1	1	24 Sep	24 Sep
135.	White Wagtail	0	0	13	10	0	0	0	0	11	1	0	0	35	11	24	11 (22 Mar)	7	11	14 Mar	31 Oct
136.	alba wagtail sp.	0	0	4	4	1	0	0	0	0	0	0	0	9	0	9	3 (26 Mar)	3	5	19 Mar	12 May
137.	Pied Wagtail	0	0	0	0	1	0	0	0	0	0	0	0	1	1	0	1 (12 May)	1	1	12 May	12 May
138.	Meadow Pipit	0	0	20	31	38	0	0	0	59	137	10	0	295	100	195	56 (18 Oct)	20	32	8 Mar	15 Nov
139.	Tree Pipit	0	0	0	0	3	0	0	0	0	0	0	0	3	0	3	3 (10 May)	1	1	10 May	10 May
140.	Rock Pipit	0	0	0	0	0	0	0	0	1	1	0	0	2	1	1	1 (26 Sep)	1	2	26 Sep	17 Oct
141.	Chaffinch	0	0	1	0	0	0	0	0	9	188	0	6	204	79	125	82 (15 Oct)	5	8	22 Mar	27 Dec
142.	Brambling	0	0	0	0	0	0	0	0	0	4	0	0	4	1	3	3 (15 Oct)	1	2	15 Oct	31 Oct
143.	Greenfinch	0	0	0	0	0	0	0	0	2	7	0	0	9	0	9	4 (10 Oct)	2	3	27 Sep	15 Oct
144.	Linnet	0	0	4	20	277	12	2	1	26	4	0	0	346	44	302	91 (10 May)	18	29	19 Mar	31 Oct
145.	Redpoll	0	0	0	0	0	0	0	0	0	2	0	0	2	2	0	2 (31 Oct)	1	1	31 Oct	31 Oct
146.	Goldfinch	0	0	0	3	2	0	0	0	0	12	0	0	17	14	3	6 (10 Oct)	4	7	5 Apr	31 Oct
147.	Reed Bunting	0	0	0	2	0	0	0	0	0	0	0	0	2	0	2	2 (4 Apr)	1	1	4 Apr	4 Apr
	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	0	3	9	1	10	4	0	3	5	13	5	0	53	26	27	10 (7 May)	11	18	7 Feb	21 Nov
2.	Grey seal	3	0	1	4	0	0	0	1	1	0	0	0	10	2	8	2 (9 Apr)	5	8	6 Jan	19 Sep
3.	Common Seal	14	16	23	21	6	2	6	7	11	40	21	30	197	73	124	14 (18 Oct)	43	69	6 Jan	29 Dec
4.	bat sp.	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (7 Sep)	1	1	7 Sep	7 Sep
	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.	Small Tortoiseshell	0	0	1	1	0	0	0	0	0	0	0	0	2	0	2	1 (22 Mar)	1	2	22 Mar	5 Apr
2.	Brimstone	0	0	0	1	0	0	0	0	0	0	0	0	1	0	1	1 (12 Apr)	1	1	12 Apr	12 Apr
3.	European Peacock	0	0	1	4	2	0	1	0	0	0	0	0	8	3	5	2 (12 Apr)	4	6	22 Mar	2 Jul
4.	Speckled Wood	0	0	0	0	0	0	1	0	0	0	0	0	1	0	1	1 (12 Jul)	1	1	12 Jul	12 Jul
5.	Large White	0	0	0	6	7	5	9	1	0	0	0	0	28	14	14	9 (2 Jul)	7	11	26 Apr	13 Aug
6.	Green-veined White	0	0	0	13	5	0	0	1	1	0	0	0	20	9	11	11 (12 Apr)	3	5	12 Apr	27 Sep
7.	Small White	0	0	0	25	49	34	12	8	6	0	0	0	134	49	85	27 (21 Jun)	13	21	12 Apr	7 Sep
8.	white sp. (butterfly)	0	0	0	50	61	40	1	0	28	0	0	0	180	60	120	46 (10 May)	7	11	12 Apr	27 Sep
9.	Red Admiral	0	0	0	0	7	14	3	0	5	0	0	0	29	5	24	9 (21 Jun)	7	11	9 May	27 Sep
10.	Small Heath	0	0	0	0	1	11	0	2	0	0	0	0	14	3	11	5 (21 Jun)	4	6	19 May	30 Aug
	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.	Bumblebee sp.	0	0	8	32	46	9	34	17	20	4	0	0	170	72	98	22 (31 May)	28	44	8 Mar	18 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	2764	3609	24747	33292	47741	12052	35546	8874	10461	24889	6571	4740	215286	91929	123357		100	159
	Observation hours	24:30	29:00	77:00	81:00	80:45	42:00	46:45	57:30	72:30	68:20	33:40	38:30	651:30

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Trektellen

Totals Huisduinen (zeetrek) 2025