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Remarkable
Analysis
Phenology
Record counts
Graph
Graph (combo)
Migration pattern (map)
Totals (date)
Totals (species)
Totals (species x migration site)
Totals by year (species)
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Totals Noordwijk 2026
Year
all years
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
1990
1989
1988
1987
1986
1985
1984
1983
1982
1981
1980
1979
1978
1977
1976
1975
1974
1973
1972
1969
Period
january
february
march
april
may
june
july
august
september
october
november
december
all months
spring
autumn
jan, feb & mar
feb, mar & apr
mar, apr & may
apr, may & jun
may, jun & jul
jun, jul & aug
jul, aug & sep
aug, sep & oct
sep, oct & nov
oct, nov & dec
jan & feb
feb & mar
mar & apr
apr & may
may & jun
jun & jul
jul & aug
aug & sep
sep & oct
oct & nov
nov & dec
dec & jan
count-field
both directions
number N
number S
Also present
Species
Jan
Feb
Mar
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Dark-bellied Brent Goose
49
5
27
81
33
48
25 (
10 Jan
)
12
7
2 Jan
3 Mar
2.
Canada Goose
0
27
10
37
21
16
20 (
8 Feb
)
5
3
8 Feb
3 Mar
3.
Barnacle Goose
989
3941
250
5180
145
5035
990 (
25 Feb
)
47
28
12 Jan
3 Mar
4.
Greylag Goose
147
329
76
552
230
322
152 (
25 Feb
)
53
31
14 Jan
3 Mar
5.
Anser sp.
10
315
0
325
17
308
280 (
26 Feb
)
7
4
27 Jan
26 Feb
6.
goose sp.
159
1237
22
1418
52
1366
474 (
4 Feb
)
20
12
9 Jan
1 Mar
7.
Domestic Goose
0
2
1
3
3
0
1 (
8 Feb
)
5
3
8 Feb
1 Mar
8.
Pink-footed Goose
7
121
0
128
22
106
101 (
5 Feb
)
8
5
13 Jan
12 Feb
9.
Bean Goose sp.
40
0
0
40
0
40
40 (
19 Jan
)
2
1
19 Jan
19 Jan
10.
Eurasian White-fronted Goose
490
246
0
736
111
625
360 (
19 Jan
)
17
10
17 Jan
12 Feb
11.
Mute Swan
0
2
0
2
2
0
2 (
25 Feb
)
2
1
25 Feb
25 Feb
12.
Egyptian Goose
64
138
26
228
81
147
41 (
25 Feb
)
42
25
11 Jan
3 Mar
13.
Shelduck
91
112
18
221
154
67
55 (
10 Jan
)
56
33
2 Jan
3 Mar
14.
Shoveler
1
14
20
35
6
29
12 (
25 Feb
)
10
6
29 Jan
3 Mar
15.
Gadwall
14
15
0
29
13
16
9 (
17 Feb
)
14
8
10 Jan
23 Feb
16.
Wigeon
1755
741
66
2562
1184
1378
710 (
14 Jan
)
64
38
6 Jan
3 Mar
17.
Mallard
27
0
0
27
27
0
23 (
10 Jan
)
5
3
10 Jan
19 Jan
18.
Pintail
7
29
16
52
26
26
21 (
3 Feb
)
12
7
10 Jan
3 Mar
19.
Teal
139
207
75
421
186
235
97 (
1 Feb
)
42
25
9 Jan
3 Mar
20.
duck sp.
49
41
0
90
54
36
20 (
22 Jan
)
27
16
5 Jan
28 Feb
21.
Pochard
1
0
0
1
1
0
1 (
21 Jan
)
2
1
21 Jan
21 Jan
22.
Tufted Duck
2
1
0
3
2
1
2 (
18 Jan
)
3
2
18 Jan
8 Feb
23.
Scaup
3
2
0
5
0
5
3 (
25 Jan
)
3
2
25 Jan
13 Feb
24.
Eider
17
55
62
134
57
77
56 (
3 Mar
)
34
20
1 Jan
3 Mar
25.
Velvet Scoter
4
4
0
8
8
0
3 (
17 Jan
)
7
4
15 Jan
13 Feb
26.
Common Scoter
540
470
43
1053
512
541
165 (
17 Jan
)
83
49
1 Jan
3 Mar
27.
Long-tailed Duck
3
0
0
3
3
0
3 (
11 Jan
)
2
1
11 Jan
11 Jan
28.
Goldeneye
13
10
0
23
18
5
7 (
25 Feb
)
19
11
10 Jan
25 Feb
29.
Goosander
8
7
0
15
9
6
6 (
11 Jan
)
12
7
11 Jan
25 Feb
30.
Red-breasted Merganser
52
23
2
77
27
50
15 (
29 Jan
)
31
18
1 Jan
1 Mar
Species
Jan
Feb
Mar
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
31.
Little Grebe
1
0
0
1
1
0
1 (
11 Jan
)
2
1
11 Jan
11 Jan
32.
Red-necked Grebe
1
1
0
2
1
1
1 (
12 Jan
)
3
2
12 Jan
7 Feb
33.
Great Crested Grebe
425
189
14
628
475
153
158 (
12 Jan
)
66
39
3 Jan
2 Mar
34.
Slavonian Grebe
0
1
0
1
1
0
1 (
8 Feb
)
2
1
8 Feb
8 Feb
35.
Black-necked Grebe
3
0
0
3
3
0
2 (
15 Jan
)
3
2
15 Jan
25 Jan
36.
Oystercatcher
9
116
3
128
102
26
21 (
8 Feb
)
37
22
1 Jan
2 Mar
37.
Avocet
5
0
0
5
5
0
5 (
25 Jan
)
2
1
25 Jan
25 Jan
38.
Ringed Plover
0
1
0
1
1
0
1 (
7 Feb
)
2
1
7 Feb
7 Feb
39.
Lapwing
418
18
0
436
436
0
190 (
5 Jan
)
10
6
5 Jan
25 Feb
40.
Curlew
9
38
0
47
13
34
27 (
12 Feb
)
17
10
10 Jan
26 Feb
41.
Bar-tailed Godwit
0
0
1
1
1
0
1 (
2 Mar
)
2
1
2 Mar
2 Mar
42.
Turnstone
4
6
0
10
5
5
4 (
4 Feb
)
8
5
20 Jan
5 Feb
43.
Sanderling
180
99
3
282
220
62
180 (
31 Jan
)
14
8
31 Jan
1 Mar
44.
Dunlin
0
19
2
21
0
21
12 (
12 Feb
)
7
4
12 Feb
3 Mar
45.
Little Gull
19
23
0
42
29
13
21 (
25 Feb
)
12
7
5 Jan
28 Feb
46.
Kittiwake
742
5
0
747
523
224
189 (
4 Jan
)
41
24
1 Jan
17 Feb
47.
Black-headed Gull
693
2282
131
3106
947
2159
1143 (
21 Feb
)
80
47
1 Jan
3 Mar
48.
Common Gull
495
241
62
798
369
429
161 (
1 Jan
)
80
47
1 Jan
3 Mar
49.
Herring Gull
125
420
121
666
305
361
90 (
20 Feb
)
61
36
1 Jan
3 Mar
50.
Great Black-backed Gull
150
21
1
172
80
92
36 (
1 Jan
)
68
40
1 Jan
2 Mar
51.
Glaucous Gull
1
0
0
1
1
0
1 (
10 Jan
)
2
1
10 Jan
10 Jan
52.
Lesser Black-backed Gull
3
110
79
192
133
59
37 (
2 Mar
)
42
25
4 Jan
3 Mar
53.
Arctic Skua
1
0
0
1
0
1
1 (
2 Jan
)
2
1
2 Jan
2 Jan
54.
Great Skua
1
1
0
2
1
1
1 (
4 Jan
)
3
2
4 Jan
4 Feb
55.
Razorbill
57
0
0
57
43
14
28 (
25 Jan
)
7
4
23 Jan
27 Jan
56.
Razorbill/Guillemot
14880
184
0
15064
13883
1181
3886 (
22 Jan
)
53
31
4 Jan
25 Feb
57.
Guillemot
52
1
0
53
45
8
36 (
25 Jan
)
8
5
20 Jan
1 Feb
58.
Red-throated Diver
4861
1359
15
6235
5845
390
1428 (
11 Jan
)
93
55
1 Jan
3 Mar
59.
Black-throated Diver
4
4
0
8
8
0
3 (
13 Feb
)
8
5
11 Jan
13 Feb
60.
diver sp.
8
5
2
15
5
10
5 (
5 Jan
)
14
8
5 Jan
2 Mar
Species
Jan
Feb
Mar
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
61.
Fulmar
2
1
0
3
1
2
1 (
3 Jan
)
5
3
3 Jan
1 Feb
62.
Gannet
2026
277
28
2331
1791
540
377 (
20 Jan
)
86
51
1 Jan
1 Mar
63.
Cormorant
8540
1815
197
10552
4078
6474
2316 (
25 Jan
)
100
59
1 Jan
3 Mar
64.
Spoonbill
0
5
0
5
5
0
5 (
26 Feb
)
2
1
26 Feb
26 Feb
65.
Great White Egret
1
0
0
1
1
0
1 (
6 Jan
)
2
1
6 Jan
6 Jan
66.
Skylark
73
6
0
79
73
6
48 (
5 Jan
)
12
7
5 Jan
8 Feb
67.
Starling
2
6
0
8
2
6
4 (
12 Feb
)
5
3
29 Jan
12 Feb
68.
Redwing
15
0
0
15
15
0
15 (
11 Jan
)
2
1
11 Jan
11 Jan
69.
alba wagtail sp.
0
1
0
1
0
1
1 (
25 Feb
)
2
1
25 Feb
25 Feb
70.
Meadow Pipit
6
0
0
6
6
0
6 (
6 Jan
)
2
1
6 Jan
6 Jan
Other species
Species
Jan
Feb
Mar
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Harbour Porpoise
14
14
0
28
18
10
10 (
12 Feb
)
25
15
5 Jan
20 Feb
2.
Grey seal
2
1
0
3
0
3
1 (
11 Jan
)
5
3
11 Jan
18 Feb
3.
Common Seal
1
1
1
3
2
1
1 (
9 Jan
)
5
3
9 Jan
3 Mar
Species
Jan
Feb
Mar
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
38510
15365
1374
55249
32477
22772
100
59
Observation hours
47:04
37:36
4:31
89:11
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