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Remarkable
Analysis
Phenology
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Totals Groothoofd (Dordrecht) 2023
Species
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Canada Goose
4
12
0
0
0
0
9
3
28
15
13
12 (
2 Apr
)
31
5
25 Mar
1 Oct
2.
Barnacle Goose
359
2
0
0
0
258
11
59
689
326
363
359 (
15 Mar
)
44
7
15 Mar
14 Oct
3.
Greylag Goose
21
8
0
0
0
108
51
136
324
290
34
72 (
14 Oct
)
81
13
15 Mar
18 Oct
4.
goose sp.
16
0
0
0
0
0
0
0
16
0
16
16 (
15 Mar
)
6
1
15 Mar
15 Mar
5.
Eurasian White-fronted Goose
78
0
0
0
0
0
0
125
203
124
79
124 (
18 Oct
)
19
3
15 Mar
18 Oct
6.
Egyptian Goose
1
0
0
0
0
0
3
48
52
37
15
24 (
11 Oct
)
38
6
25 Mar
14 Oct
7.
Shelduck
2
2
0
0
0
0
0
1
5
3
2
2 (
15 Mar
)
19
3
15 Mar
14 Oct
8.
Shoveler
1
0
0
0
0
0
0
0
1
1
0
1 (
15 Mar
)
6
1
15 Mar
15 Mar
9.
Gadwall
1
3
0
0
0
33
6
6
49
46
3
32 (
16 Aug
)
38
6
15 Mar
7 Oct
10.
Wigeon
56
0
0
0
0
0
0
0
56
0
56
56 (
15 Mar
)
6
1
15 Mar
15 Mar
11.
Pintail
0
0
0
0
0
0
1
1
2
2
0
1 (
27 Sep
)
13
2
27 Sep
11 Oct
12.
Tufted Duck
0
0
0
0
0
0
6
0
6
6
0
6 (
27 Sep
)
6
1
27 Sep
27 Sep
13.
Stock Dove
2
7
0
0
0
0
5
14
28
19
9
8 (
18 Oct
)
38
6
25 Mar
18 Oct
14.
Woodpigeon
22
15
0
0
0
0
30
190
257
220
37
65 (
14 Oct
)
69
11
15 Mar
18 Oct
15.
Collared Dove
0
0
0
0
0
2
0
0
2
2
0
2 (
28 Aug
)
6
1
28 Aug
28 Aug
16.
Oystercatcher
42
0
0
0
0
2
1
0
45
3
42
36 (
15 Mar
)
25
4
15 Mar
2 Sep
17.
Lapwing
2
0
0
0
0
0
0
6
8
8
0
6 (
7 Oct
)
13
2
15 Mar
7 Oct
18.
Curlew
2
0
0
0
0
1
0
0
3
3
0
2 (
25 Mar
)
13
2
25 Mar
28 Aug
19.
Black-tailed Godwit
5
147
0
0
0
0
0
0
152
0
152
147 (
15 Apr
)
13
2
15 Mar
15 Apr
20.
Snipe
0
0
0
0
0
0
0
15
15
15
0
15 (
7 Oct
)
6
1
7 Oct
7 Oct
21.
Common Sandpiper
0
0
0
0
0
0
0
1
1
1
0
1 (
1 Oct
)
6
1
1 Oct
1 Oct
22.
Green Sandpiper
0
0
0
0
0
0
3
0
3
3
0
3 (
24 Sep
)
6
1
24 Sep
24 Sep
23.
Ruff
0
0
0
0
0
13
0
0
13
13
0
13 (
20 Aug
)
6
1
20 Aug
20 Aug
24.
Common Tern
0
0
0
0
0
1
1
0
2
1
1
1 (
16 Aug
)
13
2
16 Aug
2 Sep
25.
Black-headed Gull
346
15
0
0
0
0
9
0
370
9
361
327 (
15 Mar
)
25
4
15 Mar
27 Sep
26.
Mediterranean Gull
5
9
0
0
0
0
0
0
14
5
9
7 (
15 Apr
)
19
3
15 Mar
15 Apr
27.
Lesser Black-backed Gull
13
0
0
0
0
0
0
0
13
0
13
13 (
15 Mar
)
6
1
15 Mar
15 Mar
28.
Cormorant
27
6
0
0
0
0
213
366
612
579
33
328 (
14 Oct
)
50
8
15 Mar
18 Oct
29.
Spoonbill
2
7
0
0
0
0
8
17
34
25
9
10 (
7 Oct
)
50
8
25 Mar
14 Oct
30.
Cattle Egret
0
0
0
0
0
1
0
0
1
1
0
1 (
28 Aug
)
6
1
28 Aug
28 Aug
Species
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
31.
Great White Egret
0
0
0
0
0
0
0
3
3
3
0
2 (
7 Oct
)
13
2
7 Oct
11 Oct
32.
Grey Heron
3
0
0
0
0
12
18
1
34
31
3
18 (
2 Sep
)
31
5
15 Mar
1 Oct
33.
Purple Heron
0
0
0
0
0
165
23
0
188
188
0
165 (
28 Aug
)
13
2
28 Aug
2 Sep
34.
Osprey
0
0
0
0
0
0
1
0
1
1
0
1 (
2 Sep
)
6
1
2 Sep
2 Sep
35.
Sparrowhawk
0
0
0
0
0
0
1
2
3
3
0
2 (
18 Oct
)
13
2
27 Sep
18 Oct
36.
Marsh Harrier
1
0
0
0
0
1
4
3
9
7
2
3 (
14 Oct
)
31
5
25 Mar
14 Oct
37.
Common Buzzard
0
0
0
0
0
1
2
0
3
3
0
2 (
2 Sep
)
13
2
16 Aug
2 Sep
38.
Kestrel
0
0
0
0
0
1
2
0
3
3
0
1 (
28 Aug
)
19
3
28 Aug
27 Sep
39.
Merlin
0
0
0
0
0
0
1
0
1
1
0
1 (
24 Sep
)
6
1
24 Sep
24 Sep
40.
Hobby
0
0
0
0
0
0
1
0
1
1
0
1 (
24 Sep
)
6
1
24 Sep
24 Sep
41.
Jay
0
0
0
0
0
0
3
7
10
10
0
4 (
7 Oct
)
25
4
27 Sep
14 Oct
42.
Jackdaw
0
0
0
0
0
0
0
27
27
27
0
27 (
18 Oct
)
6
1
18 Oct
18 Oct
43.
Rook
0
0
0
0
0
0
0
1
1
1
0
1 (
14 Oct
)
6
1
14 Oct
14 Oct
44.
Blue Tit
0
0
0
0
0
0
17
40
57
57
0
21 (
18 Oct
)
38
6
24 Sep
18 Oct
45.
Great Tit
0
0
0
0
0
0
11
7
18
18
0
7 (
27 Sep
)
38
6
24 Sep
14 Oct
46.
Skylark
0
0
0
0
0
0
0
77
77
77
0
51 (
14 Oct
)
13
2
14 Oct
18 Oct
47.
Swallow
0
1
0
0
0
4
14
1
20
19
1
7 (
2 Sep
)
31
5
15 Apr
7 Oct
48.
House Martin
0
0
0
0
0
42
0
0
42
42
0
42 (
16 Aug
)
6
1
16 Aug
16 Aug
49.
Goldcrest
0
0
0
0
0
0
1
0
1
1
0
1 (
27 Sep
)
6
1
27 Sep
27 Sep
50.
Starling
871
2
0
0
0
0
326
357
1556
609
947
799 (
15 Mar
)
63
10
15 Mar
18 Oct
51.
Song Thrush
0
1
0
0
0
0
18
26
45
44
1
18 (
27 Sep
)
44
7
15 Apr
18 Oct
52.
Mistle Thrush
0
0
0
0
0
0
0
1
1
1
0
1 (
18 Oct
)
6
1
18 Oct
18 Oct
53.
Redwing
45
3
0
0
0
0
0
390
438
390
48
325 (
18 Oct
)
44
7
15 Mar
18 Oct
54.
Blackbird
0
0
0
0
0
0
0
2
2
2
0
1 (
11 Oct
)
13
2
11 Oct
18 Oct
55.
Fieldfare
0
0
0
0
0
0
0
8
8
8
0
8 (
18 Oct
)
6
1
18 Oct
18 Oct
56.
Blue-headed Wagtail
0
1
0
0
0
0
1
0
2
1
1
1 (
15 Apr
)
13
2
15 Apr
24 Sep
57.
Grey Wagtail
1
0
0
0
0
0
1
5
7
7
0
3 (
14 Oct
)
31
5
15 Mar
14 Oct
58.
White Wagtail
5
6
0
0
0
0
5
18
34
23
11
8 (
7 Oct
)
63
10
15 Mar
14 Oct
59.
Meadow Pipit
6
65
0
0
0
0
144
414
629
558
71
201 (
14 Oct
)
69
11
15 Mar
18 Oct
60.
Tree Pipit
0
0
0
0
0
0
1
0
1
1
0
1 (
24 Sep
)
6
1
24 Sep
24 Sep
Species
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
61.
Red-throated Pipit
0
0
0
0
0
0
0
1
1
1
0
1 (
11 Oct
)
6
1
11 Oct
11 Oct
62.
Water Pipit
0
0
0
0
0
0
1
0
1
1
0
1 (
27 Sep
)
6
1
27 Sep
27 Sep
63.
Chaffinch
3
1
0
0
0
0
31
3281
3316
3306
10
2719 (
14 Oct
)
63
10
15 Mar
18 Oct
64.
Brambling
0
0
0
0
0
0
0
1
1
1
0
1 (
18 Oct
)
6
1
18 Oct
18 Oct
65.
Greenfinch
1
0
0
0
0
0
1
3
5
4
1
2 (
14 Oct
)
25
4
25 Mar
18 Oct
66.
Linnet
0
4
0
0
0
0
4
1
9
5
4
4 (
15 Apr
)
19
3
15 Apr
7 Oct
67.
Crossbill
1
0
0
0
0
0
0
0
1
0
1
1 (
15 Mar
)
6
1
15 Mar
15 Mar
68.
Goldfinch
2
0
0
0
0
1
0
3
6
6
0
3 (
18 Oct
)
19
3
15 Mar
18 Oct
69.
Siskin
0
0
0
0
0
0
7
292
299
299
0
218 (
14 Oct
)
31
5
27 Sep
18 Oct
70.
Reed Bunting
0
0
0
0
0
0
0
2
2
2
0
2 (
7 Oct
)
6
1
7 Oct
7 Oct
Other species
Species
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Grey seal
0
0
0
0
0
1
0
0
1
1
0
1 (
16 Aug
)
6
1
16 Aug
16 Aug
Species
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
1946
317
0
0
0
647
996
5962
9868
7520
2348
100
16
Observation hours
3:24
2:43
0:00
0:00
0:00
3:53
5:38
9:50
25:28
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