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Remarkable
Analysis
Phenology
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Select until 22 January
Totals Sliedrecht - Oude Uitbreiding (nacht) 2016 - 2025
Species
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
Totals
Average
Present
Year
Maximum
1.
Fulvous Whistling Duck
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
2.
Whooper Swan
0
0
0
0
0
0
0
0
8
0
8
4
0
8 (
2024
)
3.
Shelduck
0
0
0
0
0
0
0
0
0
1
1
0.5
0
1 (
2025
)
4.
Wigeon
0
0
0
0
0
0
0
0
3184
3886
7070
3535
0
3886 (
2025
)
5.
Teal
0
0
0
0
0
0
0
0
35
21
56
28
0
35 (
2024
)
6.
Goldeneye
0
0
0
0
0
0
0
0
6
2
8
4
0
6 (
2024
)
7.
Moorhen
0
0
0
0
0
0
0
0
6
0
6
3
0
6 (
2024
)
8.
Coot
0
0
0
0
0
0
0
0
75
23
98
49
0
75 (
2024
)
9.
Crane
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
10.
Little Grebe
0
0
0
0
0
0
0
0
3
0
3
1.5
0
3 (
2024
)
11.
Golden Plover
0
0
0
0
0
0
0
0
18
1
19
9.5
0
18 (
2024
)
12.
Lapwing
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
13.
Curlew
0
0
0
0
0
0
0
0
18
0
18
9
0
18 (
2024
)
14.
Snipe
0
0
0
0
0
0
0
0
34
4
38
19
0
34 (
2024
)
15.
Green Sandpiper
0
0
0
0
0
0
0
0
6
2
8
4
0
6 (
2024
)
16.
Dunlin
0
0
0
0
0
0
0
0
3
0
3
1.5
0
3 (
2024
)
17.
Black-headed Gull
0
0
0
0
0
0
0
0
2
0
2
1
0
2 (
2024
)
18.
Common Gull
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
19.
Bittern
0
0
0
0
0
0
0
0
20
3
23
11.5
0
20 (
2024
)
20.
Little Egret
0
0
0
0
0
0
0
0
1
1
2
1
0
1 (
2024
)
21.
Grey Heron
0
0
0
0
0
0
0
0
126
12
138
69
0
126 (
2024
)
22.
Common Buzzard
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
23.
Barn Owl
0
0
0
0
0
0
0
0
5
0
5
2.5
0
5 (
2024
)
24.
Long-eared Owl
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
25.
Great Tit
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
26.
Skylark
0
0
0
0
0
0
0
0
2
0
2
1
0
2 (
2024
)
27.
Song Thrush
0
0
0
0
0
0
0
0
298
7
305
153
0
298 (
2024
)
28.
Redwing
0
0
0
0
0
0
0
0
2965
54
3019
1510
0
2965 (
2024
)
29.
Blackbird
0
0
0
0
0
0
0
0
168
2
170
85
0
168 (
2024
)
30.
Fieldfare
0
0
0
0
0
0
0
0
13
11
24
12
0
13 (
2024
)
31.
Robin
0
0
0
0
0
0
0
0
2
1
3
1.5
0
2 (
2024
)
32.
Dunnock
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
33.
Grey Wagtail
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
34.
Meadow Pipit
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
35.
Brambling
0
0
0
0
0
0
0
0
7
0
7
3.5
0
7 (
2024
)
36.
Hawfinch
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
37.
Bullfinch
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
38.
Siskin
0
0
0
0
0
0
0
0
1
0
1
0.5
0
1 (
2024
)
39.
Species unidentified
0
0
0
0
0
0
0
0
23
2
25
12.5
0
23 (
2024
)
Species
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
Totals
Average
Present
Year
Maximum
Totals
0
0
0
0
0
0
0
0
7041
4033
11074
5537
0
Observation hours
796:12
303:47
1,099:59
550:00
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