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Remarkable
Analysis
Phenology
Record counts
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Totals (date)
Totals (species)
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Also present
individuals
calls
all years
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oct & nov
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dec & jan
Dalfsen (nacht)
Totals 2025 - individuals
Species
Jan
Feb
Mar
Apr
May
Jun
Jul
Totals
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Canada Goose
0
2
0
1
0
0
0
3
1 (
9 Feb
)
2
3
9 Feb
6 Apr
2.
Barnacle Goose
2
7
9
3
1
0
0
22
3 (
25 Mar
)
10
15
31 Jan
6 May
3.
Greylag Goose
0
5
2
0
0
0
0
7
2 (
21 Feb
)
4
6
4 Feb
23 Mar
4.
Tundra Bean Goose
0
7
0
0
0
0
0
7
2 (
1 Feb
)
4
6
1 Feb
22 Feb
5.
Eurasian White-fronted Goose
10
79
64
0
0
0
0
153
20 (
20 Mar
)
23
35
28 Jan
27 Mar
6.
Mute Swan
0
2
0
0
0
0
0
2
2 (
23 Feb
)
1
1
23 Feb
23 Feb
7.
Whooper Swan
0
0
2
0
0
0
0
2
2 (
9 Mar
)
1
1
9 Mar
9 Mar
8.
Ruddy Shelduck
0
0
0
0
0
1
0
1
1 (
26 Jun
)
1
1
26 Jun
26 Jun
9.
Gadwall
5
18
8
8
2
0
0
41
6 (
21 Feb
)
11
16
8 Jan
17 May
10.
Wigeon
2
12
346
73
0
0
0
433
70 (
26 Mar
)
21
31
31 Jan
14 Apr
11.
Mallard
0
3
6
18
2
0
0
29
3 (
11 Apr
)
14
21
1 Feb
17 May
12.
Pintail
0
0
7
1
0
0
0
8
2 (
4 Mar
)
3
5
4 Mar
28 Apr
13.
Teal
0
10
24
67
5
0
0
106
15 (
11 Apr
)
23
34
1 Feb
4 May
14.
duck sp.
0
2
0
4
0
0
0
6
3 (
9 Apr
)
2
3
25 Feb
11 Apr
15.
Goldeneye
0
1
2
3
0
0
0
6
1 (
26 Feb
)
4
6
26 Feb
26 Apr
16.
Quail
0
0
0
1
6
13
2
22
2 (
13 Jun
)
13
20
28 Apr
1 Jul
17.
Nightjar
0
0
0
0
1
0
0
1
1 (
25 May
)
1
1
25 May
25 May
18.
Swift
0
0
0
0
26
4
0
30
4 (
5 May
)
11
16
1 May
16 Jun
19.
Cuckoo
0
0
0
0
2
0
0
2
1 (
2 May
)
1
2
2 May
14 May
20.
Water Rail
0
2
26
29
15
17
1
90
4 (
25 Mar
)
40
61
27 Feb
1 Jul
21.
Moorhen
0
5
45
71
16
7
0
144
7 (
9 Apr
)
44
67
22 Feb
30 Jun
22.
Coot
5
21
58
73
23
12
0
192
6 (
4 Mar
)
60
90
28 Jan
24 Jun
23.
Little Grebe
0
4
7
13
2
3
0
29
2 (
21 Feb
)
17
25
20 Feb
30 Jun
24.
Oystercatcher
0
33
74
31
30
11
3
182
8 (
22 Feb
)
50
76
20 Feb
1 Jul
25.
Avocet
0
0
2
0
0
0
0
2
2 (
9 Mar
)
1
1
9 Mar
9 Mar
26.
Golden Plover
0
2
3
0
2
0
0
7
2 (
22 Feb
)
3
5
22 Feb
23 May
27.
Ringed Plover
0
0
1
0
1
0
0
2
1 (
7 Mar
)
1
2
7 Mar
5 May
28.
Little Ringed Plover
0
0
0
1
0
2
0
3
1 (
12 Apr
)
2
3
12 Apr
9 Jun
29.
Lapwing
0
9
0
0
0
3
0
12
2 (
22 Feb
)
7
11
1 Feb
30 Jun
30.
Whimbrel
0
0
0
8
5
0
0
13
5 (
14 Apr
)
3
5
14 Apr
31 May
Species
Jan
Feb
Mar
Apr
May
Jun
Jul
Totals
Maximum
Presence
(%)
Presence
(days)
First
Last
31.
Curlew
0
3
5
46
1
12
0
67
19 (
11 Apr
)
16
24
23 Feb
30 Jun
32.
Black-tailed Godwit
0
0
2
0
0
0
0
2
2 (
30 Mar
)
1
1
30 Mar
30 Mar
33.
Snipe
0
0
0
1
0
0
0
1
1 (
11 Apr
)
1
1
11 Apr
11 Apr
34.
Common Sandpiper
0
0
0
2
11
0
0
13
5 (
7 May
)
5
7
20 Apr
12 May
35.
Green Sandpiper
0
0
0
1
0
5
0
6
1 (
11 Apr
)
4
6
11 Apr
30 Jun
36.
Wood Sandpiper
0
0
0
0
1
0
0
1
1 (
1 May
)
1
1
1 May
1 May
37.
Redshank
0
0
2
6
0
5
0
13
3 (
6 Apr
)
6
9
25 Mar
18 Jun
38.
Tringa sp.
0
0
0
0
1
0
0
1
1 (
6 May
)
1
1
6 May
6 May
39.
Spotted Redshank
0
0
0
0
1
0
0
1
1 (
1 May
)
1
1
1 May
1 May
40.
wader sp.
0
1
0
0
0
0
0
1
1 (
25 Feb
)
1
1
25 Feb
25 Feb
41.
Dunlin
0
0
0
0
1
0
0
1
1 (
6 May
)
1
1
6 May
6 May
42.
Black-headed Gull
0
3
19
14
4
1
0
41
5 (
6 Mar
)
17
26
6 Feb
20 Jun
43.
large gull sp.
0
0
1
0
2
0
0
3
2 (
12 May
)
1
2
20 Mar
12 May
44.
Bittern
0
1
4
8
2
2
1
18
3 (
11 Apr
)
10
15
25 Feb
1 Jul
45.
Little Bittern
0
0
0
1
0
2
0
3
1 (
29 Apr
)
2
3
29 Apr
21 Jun
46.
Night Heron
0
0
0
0
1
0
0
1
1 (
2 May
)
1
1
2 May
2 May
47.
Grey Heron
1
6
22
10
3
14
0
56
7 (
30 Mar
)
22
33
28 Jan
30 Jun
48.
Barn Owl
0
0
0
1
0
0
0
1
1 (
5 Apr
)
1
1
5 Apr
5 Apr
49.
Long-eared Owl
0
0
3
1
0
0
0
4
1 (
2 Mar
)
3
4
2 Mar
5 Apr
50.
Eagle Owl
0
1
0
0
0
0
0
1
1 (
1 Feb
)
1
1
1 Feb
1 Feb
51.
Carrion Crow
0
2
0
0
0
0
0
2
2 (
5 Feb
)
1
1
5 Feb
5 Feb
52.
Wood Lark
0
0
2
0
0
0
0
2
1 (
6 Mar
)
1
2
6 Mar
7 Mar
53.
Marsh Warbler
0
0
0
0
1
0
0
1
1 (
31 May
)
1
1
31 May
31 May
54.
Blackcap
0
0
0
3
0
1
0
4
1 (
7 Apr
)
3
4
7 Apr
16 Jun
55.
Starling
0
0
0
1
0
0
0
1
1 (
5 Apr
)
1
1
5 Apr
5 Apr
56.
Song Thrush
0
65
255
659
9
0
0
988
129 (
8 Apr
)
43
65
3 Feb
11 May
57.
Redwing
9
75
839
106
0
0
0
1029
385 (
26 Mar
)
32
48
8 Jan
22 Apr
58.
Blackbird
0
1
7
1
0
0
0
9
3 (
25 Mar
)
4
6
26 Feb
3 Apr
59.
Fieldfare
0
1
1
0
0
0
0
2
1 (
27 Feb
)
1
2
27 Feb
26 Mar
60.
Ring Ouzel
0
0
0
4
0
0
0
4
2 (
14 Apr
)
2
3
7 Apr
22 Apr
Species
Jan
Feb
Mar
Apr
May
Jun
Jul
Totals
Maximum
Presence
(%)
Presence
(days)
First
Last
61.
Spotted Flycatcher
0
0
0
0
8
0
0
8
2 (
2 May
)
4
6
1 May
17 May
62.
Robin
0
1
13
4
0
0
0
18
3 (
28 Mar
)
9
13
22 Feb
15 Apr
63.
Nightingale
0
0
0
1
0
0
0
1
1 (
14 Apr
)
1
1
14 Apr
14 Apr
64.
Collared Flycatcher
0
0
0
0
1
0
0
1
1 (
1 May
)
1
1
1 May
1 May
65.
Black Redstart
0
0
1
0
0
0
0
1
1 (
12 Mar
)
1
1
12 Mar
12 Mar
66.
Dunnock
0
2
0
0
0
0
0
2
1 (
21 Feb
)
1
2
21 Feb
25 Feb
67.
Blue-headed Wagtail
0
0
0
1
0
0
0
1
1 (
22 Apr
)
1
1
22 Apr
22 Apr
68.
Tree Pipit
0
0
0
3
1
0
0
4
1 (
22 Apr
)
3
4
22 Apr
5 May
69.
pipit sp.
0
0
0
0
1
0
0
1
1 (
8 May
)
1
1
8 May
8 May
70.
Chaffinch
0
0
0
1
0
0
0
1
1 (
1 Apr
)
1
1
1 Apr
1 Apr
71.
Siskin
0
0
1
0
0
0
0
1
1 (
20 Mar
)
1
1
20 Mar
20 Mar
72.
Yellowhammer
0
0
0
1
0
0
0
1
1 (
26 Apr
)
1
1
26 Apr
26 Apr
73.
Reed Bunting
0
1
0
1
0
0
0
2
1 (
21 Feb
)
1
2
21 Feb
9 Apr
74.
Species unidentified
0
6
7
2
0
0
0
15
1 (
1 Feb
)
10
15
1 Feb
22 Apr
75.
passerine sp.
0
0
3
0
2
0
0
5
1 (
2 Mar
)
3
5
2 Mar
11 May
Species
Jan
Feb
Mar
Apr
May
Jun
Jul
Totals
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
34
393
1873
1284
190
115
7
3896
3896
6345
100
151
Observation hours
50:55
236:40
300:50
247:05
196:40
145:55
5:40
1183:45
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