Also present

Totals Maasmond (Maasvlakte) 2022

	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Dark-bellied Brent Goose	0	0	0	0	0	0	0	0	4	18	22	22	0	12 ( 2 Oct)	31	4	15 Sep	8 Oct
2.	Greylag Goose	0	0	0	0	0	0	0	10	0	0	10	10	0	10 (26 Aug)	8	1	26 Aug	26 Aug
3.	Pink-footed Goose	0	0	0	0	0	0	0	0	0	5	5	5	0	5 ( 8 Oct)	8	1	8 Oct	8 Oct
4.	Shelduck	3	0	0	0	0	0	0	0	0	7	10	10	0	7 ( 8 Oct)	15	2	31 Jan	8 Oct
5.	Wigeon	0	0	0	0	0	0	0	0	18	1	19	19	0	8 (18 Sep)	38	5	10 Sep	2 Oct
6.	Pintail	0	0	0	0	0	0	0	0	14	0	14	14	0	14 (18 Sep)	8	1	18 Sep	18 Sep
7.	Teal	0	0	0	0	0	0	0	0	19	2	21	21	0	16 (10 Sep)	38	5	10 Sep	8 Oct
8.	Tufted Duck	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (17 Sep)	8	1	17 Sep	17 Sep
9.	Scaup	0	0	0	0	0	0	0	0	0	4	4	4	0	4 ( 8 Oct)	8	1	8 Oct	8 Oct
10.	Eider	1	11	0	0	0	0	0	0	10	2	24	17	7	11 (21 Feb)	38	5	31 Jan	2 Oct
11.	Common Scoter	0	0	0	0	0	0	0	0	42	98	140	80	60	38 ( 1 Oct)	54	7	10 Sep	8 Oct
12.	Red-breasted Merganser	0	3	0	0	0	0	0	0	5	33	41	41	0	26 ( 1 Oct)	38	5	21 Feb	2 Oct
13.	Great Crested Grebe	0	33	0	0	0	0	0	0	3	5	41	40	1	31 (21 Feb)	38	5	21 Feb	8 Oct
14.	Oystercatcher	1	0	0	0	0	0	0	2	6	6	15	15	0	4 (10 Sep)	54	7	31 Jan	8 Oct
15.	Grey Plover	0	0	0	0	0	0	0	0	12	9	21	21	0	10 (18 Sep)	23	3	15 Sep	2 Oct
16.	Ringed Plover	0	0	0	0	0	0	0	1	21	0	22	22	0	10 (18 Sep)	31	4	26 Aug	18 Sep
17.	Whimbrel	0	0	0	0	0	0	0	2	0	0	2	2	0	2 (26 Aug)	8	1	26 Aug	26 Aug
18.	Curlew	0	0	0	0	0	0	0	0	2	0	2	2	0	2 (18 Sep)	8	1	18 Sep	18 Sep
19.	Bar-tailed Godwit	0	0	0	0	0	0	0	0	0	4	4	4	0	4 ( 8 Oct)	8	1	8 Oct	8 Oct
20.	Turnstone	1	0	0	0	0	0	0	0	3	0	4	4	0	2 (18 Sep)	23	3	31 Jan	18 Sep
21.	Knot	0	0	0	0	0	0	0	0	6	0	6	6	0	4 (15 Sep)	23	3	15 Sep	18 Sep
22.	wader sp.	0	0	0	0	0	0	0	1	0	1	2	2	0	1 (21 Aug)	15	2	21 Aug	1 Oct
23.	Sanderling	0	0	0	0	0	0	0	1	28	29	58	58	0	27 ( 8 Oct)	38	5	26 Aug	8 Oct
24.	Dunlin	0	0	0	0	0	0	0	1	50	2	53	53	0	32 (18 Sep)	54	7	21 Aug	8 Oct
25.	Purple Sandpiper	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (17 Sep)	8	1	17 Sep	17 Sep
26.	Grey Phalarope	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (16 Sep)	8	1	16 Sep	16 Sep
27.	Common Sandpiper	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (10 Sep)	8	1	10 Sep	10 Sep
28.	Spotted Redshank	0	0	0	0	0	0	0	1	0	0	1	1	0	1 (21 Aug)	8	1	21 Aug	21 Aug
29.	Kittiwake	159	198	0	0	0	0	0	0	27	0	384	384	0	198 (21 Feb)	31	4	31 Jan	18 Sep
30.	Black-headed Gull	0	10	0	0	0	0	0	45	216	47	318	305	13	203 (16 Sep)	46	6	21 Feb	2 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
31.	Little Gull	0	13	0	0	0	0	0	0	8	0	21	21	0	13 (21 Feb)	23	3	21 Feb	18 Sep
32.	Mediterranean Gull	0	0	0	0	0	0	0	0	10	1	11	10	1	5 (15 Sep)	38	5	10 Sep	2 Oct
33.	Common Gull	25	3	0	0	0	0	0	6	48	5	87	73	14	42 (16 Sep)	46	6	31 Jan	2 Oct
34.	Great Black-backed Gull	7	1	0	0	0	0	0	0	38	0	46	43	3	33 (16 Sep)	31	4	31 Jan	17 Sep
35.	Herring Gull	21	27	0	0	0	0	0	3	137	2	190	189	1	111 (16 Sep)	46	6	31 Jan	2 Oct
36.	Caspian Gull	0	0	0	0	0	0	0	0	5	1	6	6	0	3 (15 Sep)	23	3	15 Sep	1 Oct
37.	Yellow-legged Gull	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (15 Sep)	8	1	15 Sep	15 Sep
38.	Lesser Black-backed Gull	0	14	0	0	0	0	0	129	2465	40	2648	2632	16	1580 (17 Sep)	38	5	21 Feb	2 Oct
39.	Laridae sp.	0	0	0	0	0	0	0	0	500	0	500	500	0	500 (16 Sep)	8	1	16 Sep	16 Sep
40.	Sandwich Tern	0	0	0	0	0	0	0	14	86	6	106	106	0	27 (18 Sep)	62	8	21 Aug	1 Oct
41.	Little Tern	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (10 Sep)	8	1	10 Sep	10 Sep
42.	Common Tern	0	0	0	0	0	0	0	67	164	31	262	261	1	100 (18 Sep)	62	8	21 Aug	8 Oct
43.	Arctic Tern	0	0	0	0	0	0	0	0	2	4	6	6	0	4 ( 8 Oct)	23	3	16 Sep	8 Oct
44.	Common/Arctic Tern	0	0	0	0	0	0	0	6	221	89	316	316	0	185 (10 Sep)	46	6	26 Aug	8 Oct
45.	Black Tern	0	0	0	0	0	0	0	0	3	2	5	5	0	2 (15 Sep)	23	3	15 Sep	2 Oct
46.	Great Skua	0	2	0	0	0	0	0	0	0	3	5	5	0	3 ( 1 Oct)	15	2	21 Feb	1 Oct
47.	Pomarine Skua	0	0	0	0	0	0	0	0	0	4	4	4	0	2 ( 1 Oct)	15	2	1 Oct	2 Oct
48.	Arctic Skua	0	0	0	0	0	0	0	0	41	26	67	64	3	13 (10 Sep)	62	8	10 Sep	8 Oct
49.	Long-tailed Skua	0	0	0	0	0	0	0	0	8	3	11	10	1	3 (16 Sep)	54	7	15 Sep	8 Oct
50.	skua sp.	0	0	0	0	0	0	0	0	2	0	2	2	0	1 (15 Sep)	15	2	15 Sep	16 Sep
51.	Guillemot	2	2	0	0	0	0	0	0	0	11	15	15	0	8 ( 8 Oct)	38	5	31 Jan	8 Oct
52.	Razorbill/Guillemot	35	91	0	0	0	0	0	0	2	57	185	177	8	91 (21 Feb)	46	6	31 Jan	8 Oct
53.	Red-throated Diver	1	0	0	0	0	0	0	0	2	58	61	56	5	33 ( 2 Oct)	46	6	31 Jan	8 Oct
54.	Black-throated Diver	0	0	0	0	0	0	0	0	0	1	1	1	0	1 ( 8 Oct)	8	1	8 Oct	8 Oct
55.	diver sp.	0	0	0	0	0	0	0	0	0	2	2	2	0	1 ( 1 Oct)	15	2	1 Oct	8 Oct
56.	Leach's Petrel	0	0	0	0	0	0	0	0	1	0	1	1	0	1 (16 Sep)	8	1	16 Sep	16 Sep
57.	Fulmar	0	1	0	0	0	0	0	0	2	0	3	3	0	1 (21 Feb)	23	3	21 Feb	18 Sep
58.	Sooty Shearwater	0	0	0	0	0	0	0	0	2	9	11	11	0	7 ( 2 Oct)	23	3	15 Sep	8 Oct
59.	Manx Shearwater	0	0	0	0	0	0	0	0	1	1	2	2	0	1 (17 Sep)	15	2	17 Sep	8 Oct
60.	Gannet	2	13	0	0	0	0	0	0	13	33	61	52	9	13 (21 Feb)	69	9	31 Jan	8 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
61.	Cormorant	18	6	0	0	0	0	0	33	69	121	247	226	21	58 ( 8 Oct)	92	12	31 Jan	8 Oct
62.	Merlin	0	0	0	0	0	0	0	0	0	1	1	1	0	1 ( 1 Oct)	8	1	1 Oct	1 Oct
63.	Peregrine	0	0	0	0	0	0	0	0	1	1	2	2	0	1 (15 Sep)	15	2	15 Sep	2 Oct
64.	Starling	0	0	0	0	0	0	0	0	0	1	1	1	0	1 ( 1 Oct)	8	1	1 Oct	1 Oct
65.	White Wagtail	0	0	0	0	0	0	0	0	1	2	3	3	0	2 ( 1 Oct)	15	2	10 Sep	1 Oct
66.	Meadow Pipit	0	0	0	0	0	0	0	0	1	2	3	3	0	2 ( 1 Oct)	15	2	10 Sep	1 Oct
67.	Rock Pipit	0	0	0	0	0	0	0	0	0	1	1	1	0	1 ( 8 Oct)	8	1	8 Oct	8 Oct
68.	Linnet	0	0	0	0	0	0	0	3	0	0	3	3	0	3 (26 Aug)	8	1	26 Aug	26 Aug
69.	Lapland Bunting	0	0	0	0	0	0	0	0	0	1	1	1	0	1 ( 8 Oct)	8	1	8 Oct	8 Oct
70.	passerine sp.	0	0	0	0	0	0	0	0	0	4	4	4	0	4 ( 8 Oct)	8	1	8 Oct	8 Oct
	Other species
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
1.	Harbour Porpoise	0	0	0	0	0	0	0	0	2	1	3	1	2	1 (10 Sep)	23	3	10 Sep	8 Oct
	Species	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Totals	S	N	Maximum	Presence (%)	Presence (days)	First	Last
	Totals	276	428	0	0	0	0	0	325	4327	797	6153	5987	166		100	13
	Observation hours	2:56	4:08	0:00	0:00	0:00	0:00	0:00	3:48	22:49	11:24	45:05

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Trektellen

Totals Maasmond (Maasvlakte) 2022