Totals Maasvlakte II 2023

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	1	0	0	12	0	0	0	0	35	51	2437	70	2606	2524	82	1281 (15 Nov)	47	24	8 Jan	26 Dec
2.	Black Brant	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (11 Nov)	2	1	11 Nov	11 Nov
3.	Greylag Goose	2	0	0	0	0	0	0	0	0	0	0	0	2	2	0	2 (8 Jan)	2	1	8 Jan	8 Jan
4.	Mute Swan	0	0	0	0	0	0	0	0	0	1	0	0	1	0	1	1 (9 Oct)	2	1	9 Oct	9 Oct
5.	Egyptian Goose	0	0	0	0	0	0	0	0	0	0	1	2	3	3	0	2 (26 Dec)	4	2	11 Nov	26 Dec
6.	Shelduck	0	0	0	2	0	0	0	18	0	2	134	19	175	157	18	73 (24 Nov)	20	10	16 Apr	22 Dec
7.	Garganey	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (28 Sep)	2	1	28 Sep	28 Sep
8.	Wigeon	0	0	0	0	0	0	0	0	18	13	96	104	231	231	0	68 (26 Dec)	25	13	28 Sep	26 Dec
9.	Pintail	0	0	0	0	0	0	0	0	29	4	152	9	194	194	0	71 (11 Nov)	20	10	28 Sep	22 Dec
10.	Teal	0	0	0	0	0	0	0	0	33	9	24	6	72	72	0	31 (28 Sep)	16	8	1 Sep	26 Dec
11.	duck sp.	0	0	1	0	0	0	0	0	0	0	0	1	2	2	0	1 (19 Mar)	4	2	19 Mar	22 Dec
12.	Tufted Duck	0	0	0	0	0	0	0	0	0	0	3	0	3	3	0	3 (15 Nov)	2	1	15 Nov	15 Nov
13.	Eider	0	0	7	19	0	0	0	0	12	2	28	6	74	63	11	15 (16 Apr)	31	16	19 Mar	22 Dec
14.	Velvet Scoter	0	0	0	0	0	0	0	0	0	1	13	8	22	22	0	5 (20 Dec)	20	10	22 Oct	22 Dec
15.	Common Scoter	0	6	0	323	0	0	40	220	551	676	1325	290	3431	2604	827	545 (3 Nov)	82	42	5 Feb	26 Dec
16.	Goldeneye	0	0	0	0	0	0	0	0	0	1	2	0	3	3	0	1 (22 Oct)	6	3	22 Oct	15 Nov
17.	Goosander	0	0	0	0	0	0	0	0	0	0	5	0	5	5	0	5 (15 Nov)	2	1	15 Nov	15 Nov
18.	Red-breasted Merganser	0	0	4	3	0	0	0	0	79	50	54	11	201	195	6	49 (28 Sep)	51	26	19 Mar	26 Dec
19.	Swift	0	0	0	0	0	0	3	0	0	0	0	0	3	3	0	3 (23 Jul)	2	1	23 Jul	23 Jul
20.	Red-necked Grebe	0	0	0	0	0	0	0	0	0	0	0	1	1	1	0	1 (26 Dec)	2	1	26 Dec	26 Dec
21.	Great Crested Grebe	0	0	0	0	0	0	0	0	11	17	81	4	113	109	4	26 (15 Nov)	41	21	1 Sep	26 Dec
22.	Black-necked Grebe	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (13 Nov)	2	1	13 Nov	13 Nov
23.	Oystercatcher	0	0	2	2	0	0	2	56	11	14	6	1	94	92	2	23 (7 Aug)	39	20	19 Mar	22 Dec
24.	Grey Plover	0	0	0	0	0	0	0	27	3	16	105	3	154	154	0	80 (15 Nov)	37	19	2 Aug	22 Dec
25.	Golden Plover	0	0	0	25	0	0	0	0	0	0	0	0	25	0	25	25 (13 Apr)	2	1	13 Apr	13 Apr
26.	Ringed Plover	0	0	0	0	0	0	0	0	7	2	0	0	9	9	0	7 (28 Sep)	4	2	28 Sep	4 Oct
27.	Whimbrel	0	0	0	0	0	0	0	53	1	0	1	0	55	55	0	29 (2 Aug)	14	7	2 Aug	15 Nov
28.	Curlew	0	0	0	14	0	0	3	0	2	3	23	0	45	31	14	15 (15 Nov)	16	8	16 Apr	15 Nov
29.	Bar-tailed Godwit	0	0	0	0	0	0	3	10	1	0	3	0	17	17	0	4 (2 Aug)	16	8	3 Jul	5 Nov
30.	Snipe	0	0	0	0	0	0	0	0	0	0	2	0	2	2	0	1 (5 Nov)	4	2	5 Nov	15 Nov
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Grey Phalarope	0	0	0	0	0	0	0	0	0	0	5	0	5	5	0	2 (6 Nov)	6	3	6 Nov	15 Nov
32.	Green Sandpiper	0	0	0	0	0	0	0	2	0	0	0	0	2	2	0	2 (7 Aug)	2	1	7 Aug	7 Aug
33.	Redshank	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (5 Nov)	2	1	5 Nov	5 Nov
34.	Turnstone	0	0	0	0	0	0	1	7	9	0	3	0	20	19	1	6 (7 Aug)	16	8	26 Jul	15 Nov
35.	Knot	0	0	0	0	0	0	0	3	7	0	4	0	14	14	0	7 (24 Sep)	8	4	2 Aug	15 Nov
36.	wader sp.	0	0	0	0	0	0	4	169	0	15	0	0	188	188	0	168 (7 Aug)	14	7	26 Jul	29 Oct
37.	small wader	0	0	0	0	0	0	0	0	2	0	0	0	2	2	0	2 (1 Sep)	2	1	1 Sep	1 Sep
38.	Curlew Sandpiper	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (9 Oct)	2	1	9 Oct	9 Oct
39.	Sanderling	0	0	0	0	0	0	10	15	109	38	9	0	181	173	8	89 (24 Sep)	25	13	26 Jul	11 Nov
40.	Dunlin	0	0	3	54	0	0	0	6	147	597	2888	6	3701	3644	57	2279 (15 Nov)	47	24	12 Mar	26 Dec
41.	Purple Sandpiper	0	0	0	0	0	0	0	0	0	3	0	0	3	3	0	3 (7 Oct)	2	1	7 Oct	7 Oct
42.	Little Stint	0	0	0	0	0	0	0	3	0	0	0	0	3	3	0	3 (26 Aug)	2	1	26 Aug	26 Aug
43.	Little Tern	0	0	0	0	0	0	2	4	0	0	0	0	6	6	0	2 (26 Aug)	10	5	3 Jul	26 Aug
44.	Gull-billed Tern	0	0	0	0	0	0	0	1	0	0	0	0	1	1	0	1 (3 Aug)	2	1	3 Aug	3 Aug
45.	Black Tern	0	0	0	0	0	0	0	11	5	2	0	0	18	15	3	8 (7 Aug)	10	5	7 Aug	1 Oct
46.	Arctic Tern	0	0	0	0	0	0	4	0	0	1	4	0	9	9	0	4 (3 Jul)	10	5	3 Jul	15 Nov
47.	Common/Arctic Tern	0	0	0	14	0	0	46	181	942	14	4	0	1201	1185	16	718 (29 Sep)	41	21	13 Apr	15 Nov
48.	Common Tern	0	0	0	14	0	0	43	1381	1	2	0	0	1441	1397	44	750 (7 Aug)	22	11	16 Apr	22 Oct
49.	Sandwich Tern	0	0	0	6	0	0	68	1219	7323	2008	285	8	10917	10703	214	2950 (28 Sep)	80	41	13 Apr	22 Dec
50.	Little Gull	26	0	0	0	0	0	1	3	1	20	1895	20	1966	1961	5	665 (15 Nov)	43	22	8 Jan	22 Dec
51.	Kittiwake	80	2	0	0	0	0	0	18	2	110	7860	1593	9665	9642	23	1667 (15 Nov)	51	26	8 Jan	26 Dec
52.	Sabine's Gull	0	0	0	0	0	0	0	0	0	3	0	0	3	3	0	3 (14 Oct)	2	1	14 Oct	14 Oct
53.	Black-headed Gull	8	0	2	9	0	0	19	168	81	117	119	22	545	530	15	134 (4 Aug)	65	33	29 Jan	26 Dec
54.	Mediterranean Gull	0	0	0	0	0	0	4	0	0	3	1	0	8	8	0	4 (3 Jul)	6	3	3 Jul	15 Nov
55.	Common Gull	0	0	0	14	0	0	19	61	280	917	4761	307	6359	6326	33	1595 (24 Nov)	61	31	13 Apr	26 Dec
56.	Caspian Gull	0	0	0	0	0	0	0	0	3	2	5	0	10	9	1	2 (20 Sep)	16	8	20 Sep	15 Nov
57.	Herring Gull	0	0	3	46	0	0	9	56	13	31	103	29	290	236	54	44 (16 Apr)	69	35	12 Mar	26 Dec
58.	Great Black-backed Gull	0	0	0	0	0	0	0	0	12	2	85	51	150	141	9	35 (14 Nov)	39	20	3 Sep	26 Dec
59.	Lesser Black-backed Gull	0	0	0	335	0	0	677	4412	5897	8735	5065	9	25130	24053	1077	5386 (14 Oct)	75	38	13 Apr	26 Dec
60.	Iceland Gull	0	0	0	0	0	0	0	0	0	0	1	0	1	0	1	1 (5 Nov)	2	1	5 Nov	5 Nov
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Long-tailed Skua	0	0	0	0	0	0	0	0	1	4	1	0	6	6	0	4 (14 Oct)	6	3	28 Sep	5 Nov
62.	skua sp.	0	0	0	0	0	0	0	0	2	4	4	0	10	8	2	3 (29 Oct)	16	8	24 Sep	24 Nov
63.	Arctic Skua	0	0	0	0	0	0	0	4	65	27	128	1	225	205	20	30 (5 Nov)	51	26	3 Aug	26 Dec
64.	Pomarine Skua	0	0	0	0	0	0	0	0	3	4	7	1	15	13	2	4 (14 Oct)	22	11	24 Sep	20 Dec
65.	Great Skua	0	0	0	0	0	0	0	0	1	1	14	0	16	12	4	6 (5 Nov)	12	6	28 Sep	24 Nov
66.	Razorbill	0	0	0	0	0	0	0	0	52	482	75	0	609	607	2	167 (7 Oct)	33	17	28 Sep	24 Nov
67.	Razorbill/Guillemot	13	8	0	0	0	0	0	0	598	1835	267	3328	6049	5952	97	2927 (20 Dec)	55	28	8 Jan	26 Dec
68.	Guillemot	0	0	0	0	0	0	0	0	1	5	10	0	16	16	0	5 (5 Nov)	14	7	28 Sep	15 Nov
69.	Red-throated Diver	29	4	0	15	0	0	0	0	33	239	529	549	1398	1361	37	237 (22 Dec)	61	31	8 Jan	26 Dec
70.	Black-throated Diver	0	0	0	0	0	0	0	0	1	0	24	1	26	26	0	10 (15 Nov)	18	9	28 Sep	20 Dec
71.	Great Northern Diver	0	0	0	0	0	0	0	0	0	0	3	1	4	4	0	2 (5 Nov)	6	3	5 Nov	22 Dec
72.	diver sp.	0	0	1	0	0	0	0	0	1	0	0	1	3	1	2	1 (12 Mar)	6	3	12 Mar	21 Dec
73.	Storm Petrel	0	0	0	0	0	0	0	0	0	0	2	0	2	1	1	2 (3 Nov)	2	1	3 Nov	3 Nov
74.	Leach's Petrel	0	0	0	0	0	0	0	0	0	2	2	0	4	3	1	2 (14 Oct)	4	2	14 Oct	3 Nov
75.	Fulmar	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (24 Sep)	2	1	24 Sep	24 Sep
76.	Sooty Shearwater	0	0	0	0	0	0	0	0	8	5	0	0	13	12	1	4 (28 Sep)	10	5	19 Sep	14 Oct
77.	Manx Shearwater	0	0	0	0	0	0	0	0	1	3	0	0	4	3	1	2 (14 Oct)	6	3	28 Sep	14 Oct
78.	shearwater sp.	0	0	0	0	0	0	0	0	1	0	0	0	1	1	0	1 (19 Sep)	2	1	19 Sep	19 Sep
79.	Gannet	212	8	0	11	0	0	8	33	1263	1918	713	1101	5267	4939	328	628 (29 Sep)	88	45	8 Jan	26 Dec
80.	Cormorant	10	1	6	196	0	0	72	65	18	36	41	100	545	435	110	185 (13 Apr)	78	40	8 Jan	26 Dec
81.	Grey Heron	0	0	0	0	0	0	0	1	12	3	1	0	17	17	0	12 (29 Sep)	8	4	4 Aug	3 Nov
82.	Marsh Harrier	0	0	0	0	0	0	0	0	1	0	0	0	1	0	1	1 (24 Sep)	2	1	24 Sep	24 Sep
83.	Kestrel	0	0	0	0	0	0	1	0	0	0	1	1	3	3	0	1 (3 Jul)	6	3	3 Jul	20 Dec
84.	Jackdaw	0	0	0	0	0	0	0	0	5	0	0	0	5	5	0	5 (29 Sep)	2	1	29 Sep	29 Sep
85.	Carrion Crow	0	0	0	0	0	0	5	0	0	0	0	0	5	0	5	5 (3 Jul)	2	1	3 Jul	3 Jul
86.	Skylark	0	0	1	0	0	0	0	0	0	0	17	0	18	14	4	15 (11 Nov)	6	3	19 Mar	15 Nov
87.	Swallow	0	0	0	5	0	0	0	0	0	0	0	0	5	0	5	5 (16 Apr)	2	1	16 Apr	16 Apr
88.	Starling	0	0	0	0	0	0	1	0	0	210	8354	0	8565	8565	0	6675 (5 Nov)	16	8	3 Jul	15 Nov
89.	Fieldfare	0	0	0	0	0	0	0	0	0	0	3	0	3	3	0	3 (6 Nov)	2	1	6 Nov	6 Nov
90.	Grey Wagtail	0	0	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (14 Oct)	2	1	14 Oct	14 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	White Wagtail	0	0	1	0	0	0	1	0	0	0	0	0	2	2	0	1 (19 Mar)	4	2	19 Mar	3 Jul
92.	Meadow Pipit	0	0	4	2	0	0	0	0	8	10	0	0	24	21	3	6 (28 Sep)	18	9	19 Mar	22 Oct
93.	Chaffinch	0	0	0	0	0	0	0	0	0	0	2	0	2	2	0	2 (5 Nov)	2	1	5 Nov	5 Nov
94.	Linnet	0	0	0	0	0	0	0	0	0	0	40	0	40	40	0	40 (20 Nov)	2	1	20 Nov	20 Nov
95.	Redpoll	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (11 Nov)	2	1	11 Nov	11 Nov
96.	Siskin	0	0	0	0	0	0	0	0	0	15	0	0	15	15	0	15 (4 Oct)	2	1	4 Oct	4 Oct
97.	Lapland Bunting	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (5 Nov)	2	1	5 Nov	5 Nov
98.	Snow Bunting	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (6 Nov)	2	1	6 Nov	6 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	0	0	0	0	0	0	0	0	5	0	0	0	5	0	5	5 (3 Sep)	2	1	3 Sep	3 Sep
2.	Grey seal	0	0	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (3 Nov)	2	1	3 Nov	3 Nov
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	381	29	35	1121	0	0	1046	8207	17709	18287	37837	7664	92316	89134	3182		100	51
	Observation hours	3:15	1:30	2:20	4:07	0:00	0:00	5:36	20:31	27:41	26:59	42:15	12:51	147:05

This page is created on 2026/03/17 09:20:42 and will be cached for 2 minutes.

Trektellen

Totals Maasvlakte II 2023