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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)
Observation hours graph
Observation hours
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Totals Dune Marchand, Zuydcoote 2021
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
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
Mar
Apr
May
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Barnacle Goose
0
1
4
5
4
1
4 (
11 May
)
20
2
28 Apr
11 May
2.
Greylag Goose
5
2
0
7
0
7
4 (
30 Mar
)
30
3
30 Mar
28 Apr
3.
Mute Swan
0
1
3
4
1
3
3 (
9 May
)
20
2
27 Apr
9 May
4.
Egyptian Goose
16
0
5
21
7
14
9 (
30 Mar
)
40
4
30 Mar
13 May
5.
Shelduck
13
13
76
102
55
47
32 (
8 May
)
90
9
30 Mar
13 May
6.
Garganey
0
2
0
2
0
2
2 (
27 Apr
)
10
1
27 Apr
27 Apr
7.
Teal
0
1
0
1
0
1
1 (
28 Apr
)
10
1
28 Apr
28 Apr
8.
duck sp.
3
0
0
3
0
3
3 (
31 Mar
)
10
1
31 Mar
31 Mar
9.
Common Scoter
0
7
176
183
183
0
140 (
11 May
)
40
4
27 Apr
13 May
10.
Red-breasted Merganser
0
8
26
34
30
4
13 (
13 May
)
40
4
27 Apr
13 May
11.
Swift
0
26
843
869
24
845
487 (
8 May
)
70
7
23 Apr
13 May
12.
Cuckoo
0
0
2
2
0
2
2 (
9 May
)
10
1
9 May
9 May
13.
Turtle Dove
0
0
1
1
0
1
1 (
8 May
)
10
1
8 May
8 May
14.
Red-necked Grebe
0
0
1
1
0
1
1 (
13 May
)
10
1
13 May
13 May
15.
Great Crested Grebe
2
0
2
4
2
2
2 (
31 Mar
)
20
2
31 Mar
11 May
16.
Oystercatcher
10
10
112
132
80
52
40 (
13 May
)
70
7
31 Mar
13 May
17.
Grey Plover
0
0
8
8
0
8
6 (
13 May
)
20
2
8 May
13 May
18.
Golden Plover
0
39
0
39
0
39
39 (
23 Apr
)
10
1
23 Apr
23 Apr
19.
Ringed Plover
0
3
0
3
0
3
3 (
27 Apr
)
10
1
27 Apr
27 Apr
20.
Whimbrel
0
88
21
109
1
108
65 (
28 Apr
)
80
8
21 Apr
13 May
21.
Curlew
0
2
0
2
0
2
2 (
28 Apr
)
10
1
28 Apr
28 Apr
22.
Bar-tailed Godwit
0
2
0
2
0
2
2 (
28 Apr
)
10
1
28 Apr
28 Apr
23.
Redshank
6
1
3
10
1
9
6 (
31 Mar
)
30
3
31 Mar
13 May
24.
Greenshank
0
11
5
16
0
16
7 (
28 Apr
)
50
5
27 Apr
13 May
25.
Knot
0
0
4
4
0
4
4 (
8 May
)
10
1
8 May
8 May
26.
wader sp.
0
3
0
3
0
3
3 (
27 Apr
)
10
1
27 Apr
27 Apr
27.
Sanderling
0
0
9
9
0
9
9 (
8 May
)
10
1
8 May
8 May
28.
Dunlin
0
1
7
8
0
8
6 (
9 May
)
30
3
27 Apr
9 May
29.
Common Tern
0
14
0
14
0
14
14 (
21 Apr
)
10
1
21 Apr
21 Apr
30.
Sandwich Tern
0
0
14
14
0
14
12 (
13 May
)
20
2
8 May
13 May
Species
Mar
Apr
May
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
31.
Little Gull
3
69
0
72
0
72
68 (
21 Apr
)
30
3
31 Mar
28 Apr
32.
Black-headed Gull
117
438
146
701
75
626
240 (
28 Apr
)
70
7
30 Mar
11 May
33.
Mediterranean Gull
27
150
14
191
27
164
102 (
27 Apr
)
100
10
30 Mar
13 May
34.
Lesser Black-backed Gull
28
34
0
62
0
62
27 (
21 Apr
)
40
4
30 Mar
28 Apr
35.
Gannet
0
0
3
3
1
2
2 (
9 May
)
20
2
9 May
11 May
36.
Cormorant
83
59
0
142
0
142
60 (
31 Mar
)
40
4
30 Mar
28 Apr
37.
Spoonbill
1
153
17
171
0
171
110 (
28 Apr
)
70
7
31 Mar
13 May
38.
Great White Egret
0
8
3
11
2
9
6 (
28 Apr
)
40
4
27 Apr
13 May
39.
Grey Heron
15
13
9
37
8
29
10 (
30 Mar
)
90
9
30 Mar
13 May
40.
Purple Heron
0
18
10
28
0
28
18 (
28 Apr
)
40
4
28 Apr
11 May
41.
Sparrowhawk
2
3
7
12
0
12
4 (
9 May
)
60
6
30 Mar
11 May
42.
Marsh Harrier
0
8
20
28
2
26
18 (
9 May
)
60
6
23 Apr
13 May
43.
Red Kite
0
0
1
1
0
1
1 (
9 May
)
10
1
9 May
9 May
44.
Kestrel
0
3
0
3
0
3
3 (
28 Apr
)
10
1
28 Apr
28 Apr
45.
Merlin
0
1
0
1
0
1
1 (
28 Apr
)
10
1
28 Apr
28 Apr
46.
Golden Oriole
0
0
1
1
0
1
1 (
9 May
)
10
1
9 May
9 May
47.
Jay
0
2
22
24
0
24
21 (
9 May
)
40
4
23 Apr
11 May
48.
Jackdaw
65
11
22
98
42
56
58 (
31 Mar
)
50
5
30 Mar
13 May
49.
Carrion Crow
55
10
1
66
22
44
29 (
30 Mar
)
40
4
30 Mar
9 May
50.
Skylark
0
0
1
1
0
1
1 (
9 May
)
10
1
9 May
9 May
51.
Sand Martin
19
38
63
120
7
113
46 (
9 May
)
90
9
30 Mar
13 May
52.
Swallow
88
745
4021
4854
2020
2834
2190 (
9 May
)
90
9
30 Mar
13 May
53.
House Martin
0
6
123
129
52
77
64 (
8 May
)
60
6
27 Apr
13 May
54.
Starling
16
0
1
17
6
11
9 (
31 Mar
)
30
3
30 Mar
9 May
55.
Song Thrush
1
0
0
1
0
1
1 (
31 Mar
)
10
1
31 Mar
31 Mar
56.
Blackbird
2
0
0
2
0
2
2 (
31 Mar
)
10
1
31 Mar
31 Mar
57.
Ring Ouzel
1
1
0
2
0
2
1 (
30 Mar
)
20
2
30 Mar
27 Apr
58.
Wheatear
0
0
3
3
0
3
2 (
9 May
)
20
2
9 May
13 May
59.
Blue-headed Wagtail
3
52
39
94
20
74
33 (
9 May
)
60
6
30 Mar
13 May
60.
Yellow wagtail sp.
0
21
3
24
1
23
21 (
23 Apr
)
20
2
23 Apr
8 May
Species
Mar
Apr
May
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
61.
Grey Wagtail
3
1
0
4
0
4
3 (
30 Mar
)
20
2
30 Mar
23 Apr
62.
White Wagtail
14
28
31
73
2
71
27 (
9 May
)
80
8
30 Mar
13 May
63.
Meadow Pipit
370
2639
5
3014
2
3012
1873 (
28 Apr
)
60
6
30 Mar
9 May
64.
Tree Pipit
0
0
12
12
0
12
7 (
9 May
)
40
4
8 May
13 May
65.
Chaffinch
2
0
0
2
1
1
2 (
30 Mar
)
10
1
30 Mar
30 Mar
66.
Greenfinch
1
2
0
3
0
3
2 (
23 Apr
)
20
2
31 Mar
23 Apr
67.
Linnet
61
65
8
134
17
117
32 (
30 Mar
)
70
7
30 Mar
9 May
68.
Lesser Redpoll
0
0
1
1
1
0
1 (
8 May
)
10
1
8 May
8 May
69.
Redpoll
0
0
3
3
0
3
3 (
9 May
)
10
1
9 May
9 May
70.
Goldfinch
189
22
3
214
158
56
141 (
31 Mar
)
50
5
30 Mar
9 May
71.
Siskin
17
8
42
67
55
12
25 (
13 May
)
60
6
30 Mar
13 May
Other species
Species
Mar
Apr
May
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Brimstone
1
0
0
1
0
1
1 (
30 Mar
)
10
1
30 Mar
30 Mar
2.
Swallowtail
0
0
1
1
1
0
1 (
9 May
)
10
1
9 May
9 May
Species
Mar
Apr
May
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
1239
4843
5958
12040
2910
9130
100
10
Observation hours
8:44
12:11
19:23
40:18
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