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Totals Terschelling, Paal 18 2025
Species
Jan
Feb
Mar
Apr
May
Totals
W
E
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Dark-bellied Brent Goose
0
0
0
0
57
57
0
57
57 (
18 May
)
10
1
18 May
18 May
2.
Greylag Goose
3
0
0
0
10
13
3
10
10 (
18 May
)
20
2
26 Jan
18 May
3.
Shelduck
1
0
0
0
0
1
0
1
1 (
26 Jan
)
10
1
26 Jan
26 Jan
4.
Eider
24
0
0
0
0
24
11
13
19 (
2 Jan
)
40
4
2 Jan
29 Jan
5.
Velvet Scoter
9
0
0
0
0
9
4
5
4 (
30 Jan
)
40
4
2 Jan
31 Jan
6.
Common Scoter
1354
0
0
248
84
1686
1025
661
420 (
30 Jan
)
100
10
2 Jan
18 May
7.
Red-breasted Merganser
8
0
0
0
0
8
3
5
5 (
2 Jan
)
20
2
2 Jan
3 Jan
8.
Red-necked Grebe
2
0
0
0
0
2
1
1
1 (
26 Jan
)
20
2
26 Jan
27 Jan
9.
Great Crested Grebe
34
0
0
0
0
34
34
0
26 (
29 Jan
)
60
6
2 Jan
31 Jan
10.
Black-necked Grebe
1
0
0
0
0
1
1
0
1 (
30 Jan
)
10
1
30 Jan
30 Jan
11.
Oystercatcher
3
0
0
1
0
4
2
2
2 (
26 Jan
)
30
3
23 Jan
20 Apr
12.
Ringed Plover
0
0
0
0
1
1
1
0
1 (
18 May
)
10
1
18 May
18 May
13.
Snipe
1
0
0
0
0
1
0
1
1 (
3 Jan
)
10
1
3 Jan
3 Jan
14.
Sanderling
4
0
0
0
4
8
4
4
4 (
3 Jan
)
20
2
3 Jan
18 May
15.
Little Tern
0
0
0
0
6
6
1
5
6 (
18 May
)
10
1
18 May
18 May
16.
Black Tern
0
0
0
0
1
1
0
1
1 (
18 May
)
10
1
18 May
18 May
17.
Common/Arctic Tern
0
0
0
0
208
208
70
138
208 (
18 May
)
10
1
18 May
18 May
18.
Common Tern
0
0
0
28
0
28
13
15
28 (
20 Apr
)
10
1
20 Apr
20 Apr
19.
Sandwich Tern
1
0
0
722
94
817
261
556
722 (
20 Apr
)
30
3
27 Jan
18 May
20.
Little Gull
11
0
0
0
0
11
11
0
5 (
30 Jan
)
50
5
2 Jan
30 Jan
21.
Kittiwake
928
0
0
0
0
928
927
1
848 (
2 Jan
)
30
3
2 Jan
29 Jan
22.
Black-headed Gull
3
0
0
10
1
14
5
9
10 (
20 Apr
)
30
3
2 Jan
18 May
23.
Common Gull
617
0
0
10
2
629
424
205
453 (
2 Jan
)
40
4
2 Jan
18 May
24.
Herring Gull
0
0
0
0
4
4
2
2
4 (
18 May
)
10
1
18 May
18 May
25.
Great Black-backed Gull
36
0
0
0
0
36
30
6
28 (
2 Jan
)
20
2
2 Jan
3 Jan
26.
Glaucous Gull
1
0
0
0
0
1
1
0
1 (
26 Jan
)
10
1
26 Jan
26 Jan
27.
Lesser Black-backed Gull
0
0
0
43
40
83
35
48
43 (
20 Apr
)
20
2
20 Apr
18 May
28.
Razorbill/Guillemot
58
0
0
0
0
58
57
1
30 (
31 Jan
)
50
5
2 Jan
31 Jan
29.
Guillemot
2
0
0
0
0
2
2
0
1 (
2 Jan
)
20
2
2 Jan
30 Jan
30.
Red-throated Diver
648
0
0
7
0
655
624
31
279 (
30 Jan
)
90
9
2 Jan
20 Apr
Species
Jan
Feb
Mar
Apr
May
Totals
W
E
Maximum
Presence
(%)
Presence
(days)
First
Last
31.
Black-throated Diver
8
0
0
0
0
8
8
0
2 (
2 Jan
)
40
4
2 Jan
30 Jan
32.
Great Northern Diver
2
0
0
0
0
2
2
0
2 (
2 Jan
)
10
1
2 Jan
2 Jan
33.
diver sp.
0
0
0
0
2
2
0
2
2 (
18 May
)
10
1
18 May
18 May
34.
Fulmar
4
0
0
0
1
5
4
1
2 (
2 Jan
)
30
3
2 Jan
18 May
35.
Gannet
419
0
0
21
8
448
438
10
297 (
2 Jan
)
100
10
2 Jan
18 May
36.
Cormorant
100
0
0
35
40
175
137
38
69 (
2 Jan
)
80
8
2 Jan
18 May
37.
Shore Lark
4
0
0
0
0
4
0
4
4 (
2 Jan
)
10
1
2 Jan
2 Jan
38.
Swallow
0
0
0
0
3
3
0
3
3 (
18 May
)
10
1
18 May
18 May
39.
House Martin
0
0
0
0
1
1
0
1
1 (
18 May
)
10
1
18 May
18 May
40.
Snow Bunting
50
0
0
0
0
50
0
50
50 (
2 Jan
)
10
1
2 Jan
2 Jan
Other species
Species
Jan
Feb
Mar
Apr
May
Totals
W
E
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Harbour Porpoise
0
0
0
1
0
1
0
1
1 (
20 Apr
)
10
1
20 Apr
20 Apr
Species
Jan
Feb
Mar
Apr
May
Totals
W
E
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
4336
0
0
1126
567
6029
4141
1888
100
10
Observation hours
9:00
0:00
0:00
2:00
2:00
13:00
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