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Remarkable
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Also present
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Sliedrecht - Oude Uitbreiding (nacht)
Totals 2025 - individuals
Species
Jan
Feb
Mar
Apr
May
Jun
Jul
Totals
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Bewick's Swan
25
0
0
0
0
0
0
25
25 (
22 Jan
)
1
1
22 Jan
22 Jan
2.
Shelduck
1
0
2
0
0
0
0
3
2 (
12 Mar
)
2
2
13 Jan
12 Mar
3.
Shoveler
0
0
0
0
0
1
0
1
1 (
1 Jun
)
1
1
1 Jun
1 Jun
4.
Wigeon
3989
0
644
24
8
0
0
4665
1084 (
16 Jan
)
28
37
1 Jan
10 May
5.
Pintail
0
0
0
0
0
0
0
0
1
1
6 Mar
6 Mar
6.
Teal
21
0
132
18
4
0
0
175
36 (
19 Mar
)
17
22
2 Jan
16 May
7.
Goldeneye
2
0
2
0
0
0
0
4
1 (
3 Jan
)
3
4
3 Jan
23 Mar
8.
Quail
0
0
0
2
12
17
0
31
3 (
24 May
)
17
22
20 Apr
30 Jun
9.
Swift
0
0
0
0
21
8
0
29
9 (
6 May
)
12
16
6 May
27 Jun
10.
Cuckoo
0
0
0
2
1
0
0
3
2 (
27 Apr
)
2
2
27 Apr
2 May
11.
Water Rail
0
0
22
21
15
28
0
86
6 (
20 Mar
)
40
53
7 Mar
30 Jun
12.
Spotted Crake
0
0
0
1
1
2
0
4
1 (
24 Apr
)
3
4
24 Apr
26 Jun
13.
Moorhen
0
0
22
32
6
1
0
61
4 (
17 Mar
)
28
37
6 Mar
2 Jun
14.
Coot
23
0
9
0
0
0
0
32
3 (
10 Jan
)
14
18
1 Jan
25 Mar
15.
Crane
0
0
1
0
0
0
0
1
1 (
22 Mar
)
1
1
22 Mar
22 Mar
16.
Little Grebe
0
0
5
8
6
8
1
28
2 (
20 Mar
)
19
25
6 Mar
1 Jul
17.
Great Crested Grebe
0
0
0
1
0
0
0
1
1 (
4 Apr
)
1
1
4 Apr
4 Apr
18.
Stone Curlew
0
0
0
1
0
0
0
1
1 (
26 Apr
)
1
1
26 Apr
26 Apr
19.
Oystercatcher
0
0
66
153
102
78
4
403
17 (
12 Apr
)
74
97
6 Mar
2 Jul
20.
Black-winged Stilt
0
0
0
0
1
0
0
1
1 (
29 May
)
1
1
29 May
29 May
21.
Avocet
0
0
240
298
2
42
0
582
100 (
17 Mar
)
37
48
7 Mar
21 Jun
22.
Grey Plover
0
0
0
0
0
1
0
1
1 (
5 Jun
)
1
1
5 Jun
5 Jun
23.
Golden Plover
1
0
7
8
1
1
0
18
4 (
8 Apr
)
9
12
16 Jan
11 Jun
24.
Ringed Plover
0
0
0
0
1
1
0
2
1 (
29 May
)
2
2
29 May
3 Jun
25.
Little Ringed Plover
0
0
1
13
15
8
0
37
4 (
14 May
)
24
32
19 Mar
30 Jun
26.
Lapwing
0
0
1
0
0
3
0
4
1 (
25 Mar
)
3
4
25 Mar
30 Jun
27.
Whimbrel
0
0
0
9
11
1
0
21
5 (
4 May
)
9
12
17 Apr
30 Jun
28.
Curlew
0
0
7
8
21
19
0
55
4 (
16 May
)
26
34
12 Mar
27 Jun
29.
Black-tailed Godwit
0
0
22
36
10
0
0
68
5 (
23 Mar
)
27
35
6 Mar
21 May
30.
Snipe
4
0
0
1
0
0
0
5
2 (
12 Jan
)
3
4
2 Jan
11 Apr
Species
Jan
Feb
Mar
Apr
May
Jun
Jul
Totals
Maximum
Presence
(%)
Presence
(days)
First
Last
31.
Common Sandpiper
0
0
0
13
37
1
6
57
4 (
7 May
)
26
34
13 Apr
2 Jul
32.
Green Sandpiper
2
0
2
9
0
4
1
18
2 (
5 Apr
)
11
15
14 Jan
2 Jul
33.
Wood Sandpiper
0
0
0
0
2
0
0
2
1 (
2 May
)
2
2
2 May
8 May
34.
Redshank
0
0
3
14
6
7
0
30
3 (
7 May
)
18
24
21 Mar
19 Jun
35.
Greenshank
0
0
0
6
2
0
0
8
2 (
26 Apr
)
5
7
5 Apr
5 May
36.
Dunlin
0
0
2
2
0
1
1
6
2 (
14 Apr
)
4
5
20 Mar
2 Jul
37.
Common Tern
0
0
0
0
2
0
0
2
1 (
1 May
)
2
2
1 May
20 May
38.
Black-headed Gull
0
0
1
2
3
7
0
13
4 (
17 Jun
)
8
10
24 Mar
19 Jun
39.
Mediterranean Gull
0
0
0
1
0
0
0
1
1 (
19 Apr
)
1
1
19 Apr
19 Apr
40.
Common Gull
0
0
1
2
0
0
0
3
1 (
7 Mar
)
2
3
7 Mar
22 Apr
41.
Herring Gull
0
0
0
1
0
0
0
1
1 (
23 Apr
)
1
1
23 Apr
23 Apr
42.
Lesser Black-backed Gull
0
0
0
1
0
0
0
1
1 (
20 Apr
)
1
1
20 Apr
20 Apr
43.
Bittern
3
0
1
3
2
1
0
10
2 (
23 Apr
)
7
9
13 Jan
12 Jun
44.
Little Egret
1
0
0
0
1
0
0
2
1 (
5 Jan
)
2
2
5 Jan
14 May
45.
Grey Heron
13
0
7
25
26
40
1
112
7 (
16 Apr
)
54
71
6 Jan
1 Jul
46.
Purple Heron
0
0
0
0
0
1
0
1
1 (
2 Jun
)
1
1
2 Jun
2 Jun
47.
White-tailed Eagle
0
0
0
0
0
1
0
1
1 (
13 Jun
)
1
1
13 Jun
13 Jun
48.
Barn Owl
0
0
0
5
3
2
0
10
1 (
16 Apr
)
8
10
16 Apr
26 Jun
49.
Tawny Owl
0
0
3
0
0
0
0
3
1 (
7 Mar
)
2
3
7 Mar
15 Mar
50.
Skylark
0
0
1
1
0
0
0
2
1 (
24 Mar
)
2
2
24 Mar
9 Apr
51.
Sand Martin
0
0
0
2
0
0
0
2
2 (
3 Apr
)
1
1
3 Apr
3 Apr
52.
Reed Warbler
0
0
0
0
1
0
0
1
1 (
29 May
)
1
1
29 May
29 May
53.
Marsh Warbler
0
0
0
1
1
0
0
2
1 (
3 Apr
)
2
2
3 Apr
21 May
54.
Garden Warbler
0
0
0
0
1
0
0
1
1 (
20 May
)
1
1
20 May
20 May
55.
Song Thrush
8
0
309
464
1
0
0
782
116 (
7 Apr
)
36
47
11 Jan
6 May
56.
Redwing
62
0
788
88
0
0
0
938
319 (
25 Mar
)
33
43
2 Jan
26 Apr
57.
Blackbird
2
0
4
0
0
0
0
6
3 (
22 Mar
)
3
4
17 Jan
22 Mar
58.
Fieldfare
11
0
4
2
0
0
0
17
6 (
11 Jan
)
6
8
6 Jan
19 Apr
59.
Ring Ouzel
0
0
0
2
0
0
0
2
1 (
14 Apr
)
2
2
14 Apr
19 Apr
60.
Robin
1
0
6
0
0
0
0
7
3 (
22 Mar
)
4
5
9 Jan
31 Mar
Species
Jan
Feb
Mar
Apr
May
Jun
Jul
Totals
Maximum
Presence
(%)
Presence
(days)
First
Last
61.
Nightingale
0
0
0
0
0
1
0
1
1 (
20 Jun
)
1
1
20 Jun
20 Jun
62.
Black Redstart
0
0
1
0
0
0
0
1
1 (
24 Mar
)
1
1
24 Mar
24 Mar
63.
Dunnock
0
0
3
1
0
0
0
4
2 (
24 Mar
)
2
3
24 Mar
17 Apr
64.
Meadow Pipit
0
0
0
3
0
0
0
3
3 (
1 Apr
)
1
1
1 Apr
1 Apr
65.
Tree Pipit
0
0
2
4
1
0
0
7
1 (
21 Mar
)
5
7
21 Mar
19 May
66.
Chaffinch
0
0
1
0
0
0
0
1
1 (
30 Mar
)
1
1
30 Mar
30 Mar
67.
Hawfinch
0
0
0
0
1
1
0
2
1 (
19 May
)
2
2
19 May
3 Jun
68.
Yellowhammer
0
0
0
1
0
0
0
1
1 (
29 Apr
)
1
1
29 Apr
29 Apr
69.
Species unidentified
2
0
2
0
2
0
0
6
2 (
21 May
)
4
5
7 Jan
21 May
Species
Jan
Feb
Mar
Apr
May
Jun
Jul
Totals
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
4171
0
2324
1289
330
286
14
8414
8414
2885
100
131
Observation hours
331:47
0:00
224:12
230:10
201:50
174:07
11:36
1173:42
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