Totals Maasvlakte II 2025

Year
Period
count-field
Also present

	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	9	0	0	0	0	4	150	30	3	196	173	23	131 (12 Oct)	22	8	23 Apr	1 Dec
2.	Barnacle Goose	0	0	0	0	0	0	54	1	0	55	54	1	40 (9 Oct)	8	3	9 Oct	17 Nov
3.	Greylag Goose	2	0	0	0	0	0	0	0	3	5	3	2	2 (23 Apr)	8	3	23 Apr	22 Dec
4.	Pink-footed Goose	0	0	0	0	0	0	10	0	0	10	10	0	10 (29 Oct)	3	1	29 Oct	29 Oct
5.	Tundra Bean Goose	0	0	0	0	0	0	0	12	0	12	12	0	10 (5 Nov)	6	2	5 Nov	26 Nov
6.	Eurasian White-fronted Goose	0	0	0	0	0	0	0	0	23	23	1	22	22 (22 Dec)	6	2	1 Dec	22 Dec
7.	Mute Swan	0	0	0	0	0	0	0	0	1	1	0	1	1 (22 Dec)	3	1	22 Dec	22 Dec
8.	Egyptian Goose	5	0	0	0	0	0	0	11	2	18	9	9	6 (8 Nov)	11	4	23 Apr	22 Dec
9.	Shelduck	0	0	0	0	0	0	16	10	0	26	26	0	9 (17 Nov)	14	5	26 Oct	17 Nov
10.	Shoveler	0	0	0	0	0	1	4	0	0	5	5	0	4 (29 Oct)	6	2	11 Sep	29 Oct
11.	Gadwall	0	0	0	0	5	1	0	3	0	9	8	1	5 (30 Aug)	8	3	30 Aug	21 Nov
12.	Wigeon	0	0	0	0	0	2	1	19	3	25	25	0	8 (8 Nov)	22	8	11 Sep	8 Dec
13.	Pintail	0	0	0	0	0	5	0	1	0	6	6	0	4 (4 Sep)	8	3	4 Sep	12 Nov
14.	Teal	0	0	0	0	1	14	0	0	0	15	15	0	13 (5 Sep)	8	3	30 Aug	5 Sep
15.	duck sp.	0	0	0	0	0	11	0	19	0	30	23	7	10 (21 Nov)	14	5	5 Sep	21 Nov
16.	Tufted Duck	0	0	0	0	0	0	0	2	0	2	2	0	2 (5 Nov)	3	1	5 Nov	5 Nov
17.	Scaup	0	0	0	0	0	3	0	0	0	3	3	0	3 (5 Sep)	3	1	5 Sep	5 Sep
18.	Eider	0	0	0	0	0	4	2	5	12	23	20	3	7 (22 Dec)	22	8	12 Sep	30 Dec
19.	Velvet Scoter	0	0	0	0	0	3	0	4	0	7	3	4	3 (3 Sep)	11	4	3 Sep	26 Nov
20.	Common Scoter	10	0	0	0	18	231	165	121	56	601	439	162	150 (9 Oct)	72	26	23 Apr	30 Dec
21.	Goldeneye	0	0	0	0	0	0	0	2	0	2	2	0	2 (8 Nov)	3	1	8 Nov	8 Nov
22.	Red-breasted Merganser	0	0	0	0	0	1	2	13	37	53	35	18	22 (30 Dec)	28	10	5 Sep	30 Dec
23.	Swift	0	0	0	0	0	1	0	0	0	1	1	0	1 (3 Sep)	3	1	3 Sep	3 Sep
24.	Great Crested Grebe	0	0	0	1	0	9	4	9	10	33	27	6	7 (1 Dec)	33	12	7 Jul	22 Dec
25.	Black-necked / Slavonian Grebe	0	0	0	0	0	0	0	1	0	1	1	0	1 (17 Nov)	3	1	17 Nov	17 Nov
26.	Oystercatcher	0	0	0	1	8	11	3	5	1	29	29	0	10 (5 Sep)	25	9	7 Jul	8 Dec
27.	Grey Plover	0	0	0	0	6	131	6	3	0	146	146	0	52 (4 Sep)	19	7	5 Aug	5 Nov
28.	Ringed Plover	0	0	0	0	3	169	0	0	0	172	172	0	160 (3 Sep)	8	3	5 Aug	5 Sep
29.	Whimbrel	11	0	0	0	5	78	0	0	0	94	83	11	34 (3 Sep)	22	8	23 Apr	16 Sep
30.	Curlew	0	0	0	0	4	1	2	4	1	12	12	0	4 (30 Aug)	19	7	30 Aug	8 Dec
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Bar-tailed Godwit	0	0	0	0	0	69	0	0	0	69	69	0	68 (15 Sep)	6	2	15 Sep	16 Sep
32.	Woodcock	0	0	0	0	0	0	1	0	0	1	1	0	1 (29 Oct)	3	1	29 Oct	29 Oct
33.	Grey Phalarope	0	0	0	0	0	1	1	0	0	2	2	0	1 (16 Sep)	6	2	16 Sep	29 Oct
34.	Phalaropus sp.	0	0	0	0	0	1	0	0	0	1	1	0	1 (3 Sep)	3	1	3 Sep	3 Sep
35.	Red-necked Phalarope	0	0	0	0	0	1	0	0	0	1	1	0	1 (16 Sep)	3	1	16 Sep	16 Sep
36.	Turnstone	0	0	0	0	15	34	0	0	0	49	49	0	14 (30 Aug)	19	7	5 Aug	17 Sep
37.	Knot	0	0	0	0	1	24	0	0	0	25	25	0	15 (3 Sep)	11	4	5 Aug	16 Sep
38.	wader sp.	0	0	0	0	5	1	0	21	0	27	27	0	19 (5 Nov)	14	5	2 Aug	8 Nov
39.	Curlew Sandpiper	0	0	0	0	0	8	0	0	0	8	8	0	7 (15 Sep)	6	2	4 Sep	15 Sep
40.	Sanderling	0	0	0	0	6	210	12	3	0	231	231	0	130 (3 Sep)	25	9	5 Aug	5 Nov
41.	Dunlin	0	0	0	0	0	155	0	8	0	163	163	0	72 (17 Sep)	22	8	3 Sep	5 Nov
42.	Purple Sandpiper	0	0	0	0	0	1	3	1	0	5	5	0	2 (27 Oct)	11	4	17 Sep	5 Nov
43.	Little Stint	0	0	0	0	0	4	0	0	0	4	4	0	3 (4 Sep)	6	2	3 Sep	4 Sep
44.	Little Tern	0	0	0	0	0	10	0	0	0	10	10	0	10 (3 Sep)	3	1	3 Sep	3 Sep
45.	Black Tern	0	0	0	0	26	841	0	0	0	867	857	10	336 (3 Sep)	25	9	30 Aug	17 Sep
46.	Arctic Tern	2	0	0	0	5	2	2	2	0	13	10	3	5 (30 Aug)	14	5	23 Apr	5 Nov
47.	Common/Arctic Tern	263	0	0	519	2937	20403	0	0	0	24122	22903	1219	7743 (3 Sep)	36	13	23 Apr	17 Sep
48.	Common Tern	0	0	0	0	0	230	6	0	0	236	234	2	230 (23 Sep)	6	2	23 Sep	12 Oct
49.	Sandwich Tern	365	0	0	368	1319	3104	31	27	0	5214	4754	460	1191 (3 Sep)	64	23	23 Apr	12 Nov
50.	Little Gull	21	0	0	0	0	3	110	48	1	183	153	30	59 (29 Oct)	31	11	23 Apr	1 Dec
51.	Kittiwake	0	0	0	0	1	1	506	3	3	514	500	14	300 (27 Oct)	31	11	5 Aug	30 Dec
52.	Black-headed Gull	0	0	0	8	24	28	213	536	61	870	852	18	206 (17 Nov)	69	25	7 Jul	30 Dec
53.	Mediterranean Gull	0	0	0	0	2	1	0	0	0	3	1	2	2 (2 Aug)	6	2	2 Aug	16 Sep
54.	Common Gull	3	0	0	9	63	29	56	3141	333	3634	3362	272	1680 (17 Nov)	67	24	23 Apr	30 Dec
55.	Caspian Gull	0	0	0	0	0	0	2	0	0	2	2	0	1 (27 Oct)	6	2	27 Oct	29 Oct
56.	Herring Gull	0	0	0	2	37	35	21	219	35	349	221	128	118 (17 Nov)	67	24	7 Jul	30 Dec
57.	Great Black-backed Gull	0	0	0	0	2	20	13	39	58	132	94	38	21 (8 Dec)	42	15	5 Aug	30 Dec
58.	Lesser Black-backed Gull	52	0	0	86	1643	2950	176	377	11	5295	5077	218	841 (2 Aug)	81	29	23 Apr	22 Dec
59.	large gull sp.	0	0	0	500	0	0	0	0	0	500	0	500	500 (7 Jul)	3	1	7 Jul	7 Jul
60.	Long-tailed Skua	0	0	0	0	0	2	0	0	0	2	2	0	2 (16 Sep)	3	1	16 Sep	16 Sep
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	skua sp.	0	0	0	0	0	1	3	0	0	4	4	0	2 (27 Oct)	8	3	15 Sep	27 Oct
62.	Arctic Skua	0	0	0	0	4	65	13	0	0	82	73	9	21 (15 Sep)	33	12	30 Aug	29 Oct
63.	Pomarine Skua	0	0	0	0	1	5	2	0	0	8	8	0	2 (23 Sep)	19	7	30 Aug	29 Oct
64.	Great Skua	0	0	0	0	0	6	1	1	0	8	7	1	6 (16 Sep)	8	3	16 Sep	5 Nov
65.	Razorbill	0	0	0	0	0	1	2	1	0	4	4	0	1 (5 Sep)	11	4	5 Sep	2 Nov
66.	Razorbill/Guillemot	0	0	0	0	0	4	14	47	10	75	55	20	21 (5 Nov)	31	11	23 Sep	30 Dec
67.	Little Auk	0	0	0	0	0	0	1	0	0	1	1	0	1 (27 Oct)	3	1	27 Oct	27 Oct
68.	Guillemot	0	0	0	0	0	1	2	7	1	11	6	5	6 (17 Nov)	14	5	17 Sep	1 Dec
69.	Red-throated Diver	0	0	0	0	0	5	8	233	394	640	611	29	191 (22 Dec)	50	18	12 Sep	30 Dec
70.	Great Northern Diver	0	0	0	0	0	0	0	0	1	1	0	1	1 (30 Dec)	3	1	30 Dec	30 Dec
71.	diver sp.	0	0	0	0	0	0	2	12	0	14	14	0	6 (5 Nov)	11	4	29 Oct	17 Nov
72.	Fulmar	0	0	0	0	1	0	0	0	0	1	1	0	1 (5 Aug)	3	1	5 Aug	5 Aug
73.	Sooty Shearwater	0	0	0	0	0	58	6	0	0	64	64	0	56 (16 Sep)	14	5	5 Sep	27 Oct
74.	Manx Shearwater	0	0	0	0	0	122	0	0	0	122	121	1	119 (16 Sep)	8	3	12 Sep	16 Sep
75.	Balearic Shearwater	0	0	0	0	0	1	0	0	0	1	1	0	1 (16 Sep)	3	1	16 Sep	16 Sep
76.	Gannet	0	0	0	2	20	107	295	737	1573	2734	1465	1269	1144 (30 Dec)	89	32	7 Jul	30 Dec
77.	Cormorant	2	0	0	76	17	53	111	459	705	1423	1174	249	560 (30 Dec)	81	29	23 Apr	30 Dec
78.	Grey Heron	0	0	0	0	0	0	1	3	0	4	4	0	3 (5 Nov)	6	2	29 Oct	5 Nov
79.	Sparrowhawk	0	0	0	0	0	0	1	3	0	4	4	0	3 (5 Nov)	6	2	29 Oct	5 Nov
80.	Goshawk	0	0	0	0	0	0	1	0	0	1	0	1	1 (29 Oct)	3	1	29 Oct	29 Oct
81.	Hen Harrier	0	0	0	0	0	0	0	1	0	1	1	0	1 (5 Nov)	3	1	5 Nov	5 Nov
82.	Merlin	0	0	0	0	0	0	1	0	0	1	0	1	1 (29 Oct)	3	1	29 Oct	29 Oct
83.	Peregrine	0	0	0	0	0	2	0	0	0	2	2	0	1 (5 Sep)	6	2	5 Sep	12 Sep
84.	Jackdaw	0	0	0	0	0	4	0	0	0	4	4	0	4 (5 Sep)	3	1	5 Sep	5 Sep
85.	Blue Tit	0	0	0	0	0	0	2	2	0	4	4	0	2 (29 Oct)	6	2	29 Oct	8 Nov
86.	Swallow	1	0	0	0	0	13	0	0	0	14	13	1	13 (5 Sep)	6	2	23 Apr	5 Sep
87.	Starling	0	0	0	0	0	0	7275	3395	18	10688	10682	6	7273 (29 Oct)	25	9	27 Oct	1 Dec
88.	Blue-headed Wagtail	1	0	0	0	0	0	0	0	0	1	0	1	1 (23 Apr)	3	1	23 Apr	23 Apr
89.	Grey Wagtail	0	0	0	0	0	0	1	0	0	1	1	0	1 (29 Oct)	3	1	29 Oct	29 Oct
90.	White Wagtail	0	0	0	0	0	2	2	0	0	4	4	0	2 (5 Sep)	6	2	5 Sep	29 Oct
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
91.	Meadow Pipit	0	0	0	0	0	2	18	22	0	42	41	1	16 (5 Nov)	14	5	23 Sep	5 Nov
92.	Chaffinch	0	0	0	0	0	0	49	805	0	854	854	0	560 (2 Nov)	11	4	29 Oct	12 Nov
93.	Linnet	0	0	0	0	0	0	0	18	0	18	18	0	17 (21 Nov)	6	2	8 Nov	21 Nov
94.	Siskin	0	0	0	0	0	0	30	17	0	47	47	0	30 (29 Oct)	8	3	29 Oct	8 Nov
	Other species
	Species	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	1	0	0	0	1	1	0	1 (17 Sep)	3	1	17 Sep	17 Sep
2.	Grey seal	0	0	0	0	0	0	1	0	0	1	1	0	1 (9 Oct)	3	1	9 Oct	9 Oct
3.	Common Seal	0	0	0	0	0	1	0	1	0	2	2	0	1 (23 Sep)	6	2	23 Sep	5 Nov
	Species	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	747	0	0	1572	6179	29302	9414	10464	3356	61034	56255	4779		100	36
	Observation hours	1:00	0:00	0:00	2:00	9:41	38:40	17:02	20:28	12:27	101:18

This page is created on 2026/01/12 09:07:28 and will be cached for 2 minutes.

Trektellen

Totals Maasvlakte II 2025