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Remarkable
Analysis
Phenology
Record counts
Graph
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Migration pattern (map)
Totals (date)
Totals (species)
Totals (species x migration site)
Totals by year (species)
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Observation hours
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Totals De Bloedberg (zeetrek), Monster 2025
Year
all years
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
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
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Dark-bellied Brent Goose
0
44
44
44
0
20 (
8 Oct
)
33
3
2 Oct
11 Oct
2.
Greylag Goose
0
6
6
6
0
6 (
11 Oct
)
11
1
11 Oct
11 Oct
3.
Eurasian White-fronted Goose
0
2
2
2
0
2 (
8 Oct
)
11
1
8 Oct
8 Oct
4.
Mute Swan
0
1
1
0
1
1 (
2 Oct
)
11
1
2 Oct
2 Oct
5.
Egyptian Goose
0
16
16
16
0
16 (
2 Oct
)
11
1
2 Oct
2 Oct
6.
Shelduck
0
16
16
16
0
12 (
8 Oct
)
44
4
2 Oct
20 Oct
7.
Gadwall
0
9
9
9
0
9 (
20 Oct
)
11
1
20 Oct
20 Oct
8.
Wigeon
13
5
18
18
0
9 (
21 Sep
)
33
3
7 Sep
2 Oct
9.
Pintail
0
1
1
1
0
1 (
8 Oct
)
11
1
8 Oct
8 Oct
10.
Teal
2
17
19
19
0
17 (
20 Oct
)
22
2
21 Sep
20 Oct
11.
Tufted Duck
1
6
7
7
0
5 (
20 Oct
)
33
3
7 Sep
20 Oct
12.
Eider
4
0
4
4
0
4 (
7 Sep
)
11
1
7 Sep
7 Sep
13.
Common Scoter
9
17
26
15
11
16 (
11 Oct
)
33
3
21 Sep
11 Oct
14.
Red-breasted Merganser
0
6
6
6
0
6 (
4 Oct
)
11
1
4 Oct
4 Oct
15.
Stock Dove
0
4
4
4
0
3 (
2 Oct
)
22
2
2 Oct
8 Oct
16.
Woodpigeon
0
212
212
199
13
108 (
20 Oct
)
56
5
2 Oct
20 Oct
17.
Great Crested Grebe
0
4
4
3
1
2 (
11 Oct
)
33
3
2 Oct
11 Oct
18.
Oystercatcher
0
1
1
1
0
1 (
20 Oct
)
11
1
20 Oct
20 Oct
19.
Grey Plover
1
0
1
1
0
1 (
7 Sep
)
11
1
7 Sep
7 Sep
20.
Golden Plover
2
0
2
0
2
2 (
7 Sep
)
11
1
7 Sep
7 Sep
21.
Ringed Plover
10
0
10
10
0
8 (
7 Sep
)
22
2
7 Sep
12 Sep
22.
Snipe
0
1
1
1
0
1 (
15 Oct
)
11
1
15 Oct
15 Oct
23.
Sanderling
36
0
36
36
0
30 (
7 Sep
)
22
2
7 Sep
21 Sep
24.
Dunlin
17
0
17
17
0
12 (
21 Sep
)
33
3
7 Sep
21 Sep
25.
Common/Arctic Tern
7
0
7
6
1
6 (
7 Sep
)
22
2
7 Sep
21 Sep
26.
Sandwich Tern
79
163
242
227
15
154 (
4 Oct
)
78
7
7 Sep
11 Oct
27.
Little Gull
0
1
1
1
0
1 (
4 Oct
)
11
1
4 Oct
4 Oct
28.
Kittiwake
0
2
2
2
0
2 (
4 Oct
)
11
1
4 Oct
4 Oct
29.
Black-headed Gull
37
276
313
312
1
121 (
20 Oct
)
100
9
7 Sep
20 Oct
30.
Common Gull
0
5
5
5
0
5 (
20 Oct
)
11
1
20 Oct
20 Oct
Species
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
31.
Herring Gull
20
156
176
118
58
84 (
8 Oct
)
78
7
12 Sep
20 Oct
32.
Great Black-backed Gull
31
27
58
58
0
31 (
21 Sep
)
22
2
21 Sep
4 Oct
33.
Lesser Black-backed Gull
2
280
282
220
62
134 (
8 Oct
)
56
5
12 Sep
20 Oct
34.
skua sp.
0
3
3
3
0
2 (
4 Oct
)
22
2
4 Oct
8 Oct
35.
Arctic Skua
1
8
9
8
1
5 (
4 Oct
)
44
4
21 Sep
11 Oct
36.
Razorbill/Guillemot
3
3
6
6
0
2 (
7 Sep
)
44
4
7 Sep
20 Oct
37.
Red-throated Diver
0
6
6
6
0
3 (
2 Oct
)
33
3
2 Oct
20 Oct
38.
diver sp.
2
0
2
2
0
2 (
21 Sep
)
11
1
21 Sep
21 Sep
39.
Leach's Petrel
1
0
1
1
0
1 (
21 Sep
)
11
1
21 Sep
21 Sep
40.
Sooty Shearwater
0
3
3
3
0
3 (
4 Oct
)
11
1
4 Oct
4 Oct
41.
Manx Shearwater
3
0
3
3
0
3 (
21 Sep
)
11
1
21 Sep
21 Sep
42.
Gannet
17
27
44
42
2
17 (
21 Sep
)
67
6
21 Sep
20 Oct
43.
Cormorant
470
757
1227
1125
102
427 (
8 Oct
)
89
8
7 Sep
20 Oct
44.
Spoonbill
17
0
17
17
0
17 (
7 Sep
)
11
1
7 Sep
7 Sep
45.
Great White Egret
0
2
2
2
0
2 (
11 Oct
)
11
1
11 Oct
11 Oct
46.
Grey Heron
2
5
7
3
4
4 (
2 Oct
)
33
3
7 Sep
8 Oct
47.
Sparrowhawk
1
3
4
4
0
2 (
20 Oct
)
33
3
7 Sep
20 Oct
48.
Great Spotted Woodpecker
0
2
2
1
1
2 (
2 Oct
)
11
1
2 Oct
2 Oct
49.
Kestrel
0
1
1
1
0
1 (
2 Oct
)
11
1
2 Oct
2 Oct
50.
Magpie
0
2
2
2
0
2 (
2 Oct
)
11
1
2 Oct
2 Oct
51.
Jackdaw
0
266
266
266
0
250 (
15 Oct
)
22
2
8 Oct
15 Oct
52.
Great Tit
0
5
5
5
0
4 (
20 Oct
)
22
2
8 Oct
20 Oct
53.
Wood Lark
0
2
2
2
0
2 (
2 Oct
)
11
1
2 Oct
2 Oct
54.
Skylark
0
16
16
16
0
5 (
2 Oct
)
56
5
2 Oct
20 Oct
55.
Sand Martin
2
0
2
2
0
2 (
7 Sep
)
11
1
7 Sep
7 Sep
56.
Swallow
25
3
28
25
3
25 (
7 Sep
)
22
2
7 Sep
8 Oct
57.
House Martin
3
0
3
3
0
3 (
7 Sep
)
11
1
7 Sep
7 Sep
58.
Chiffchaff
0
1
1
1
0
1 (
2 Oct
)
11
1
2 Oct
2 Oct
59.
Goldcrest
0
1
1
1
0
1 (
8 Oct
)
11
1
8 Oct
8 Oct
60.
Starling
0
9272
9272
7381
1891
3160 (
8 Oct
)
56
5
2 Oct
20 Oct
Species
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
61.
Song Thrush
0
185
185
183
2
170 (
2 Oct
)
44
4
2 Oct
20 Oct
62.
Redwing
0
13
13
13
0
13 (
20 Oct
)
11
1
20 Oct
20 Oct
63.
Blackbird
0
9
9
9
0
6 (
20 Oct
)
22
2
2 Oct
20 Oct
64.
Fieldfare
0
2
2
2
0
2 (
20 Oct
)
11
1
20 Oct
20 Oct
65.
Wheatear
0
1
1
1
0
1 (
11 Oct
)
11
1
11 Oct
11 Oct
66.
Dunnock
0
6
6
6
0
4 (
2 Oct
)
33
3
2 Oct
11 Oct
67.
Blue-headed Wagtail
24
2
26
26
0
24 (
7 Sep
)
22
2
7 Sep
2 Oct
68.
Grey Wagtail
0
8
8
8
0
5 (
2 Oct
)
22
2
2 Oct
20 Oct
69.
White Wagtail
10
1
11
11
0
10 (
7 Sep
)
22
2
7 Sep
2 Oct
70.
Meadow Pipit
1
834
835
833
2
387 (
8 Oct
)
67
6
7 Sep
20 Oct
71.
Chaffinch
0
10132
10132
10119
13
6333 (
8 Oct
)
56
5
2 Oct
20 Oct
72.
Greenfinch
0
7
7
7
0
5 (
11 Oct
)
22
2
8 Oct
11 Oct
73.
Linnet
0
14
14
14
0
8 (
8 Oct
)
33
3
2 Oct
11 Oct
74.
redpoll sp.
0
26
26
26
0
25 (
20 Oct
)
22
2
2 Oct
20 Oct
75.
Goldfinch
0
1
1
1
0
1 (
8 Oct
)
11
1
8 Oct
8 Oct
76.
Siskin
0
151
151
151
0
107 (
8 Oct
)
44
4
2 Oct
20 Oct
77.
Reed Bunting
0
8
8
8
0
4 (
2 Oct
)
33
3
2 Oct
20 Oct
Other species
Species
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
1.
Harbour Porpoise
0
2
2
0
2
2 (
11 Oct
)
11
1
11 Oct
11 Oct
Species
Sep
Oct
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
853
23068
23921
21733
2188
100
9
Observation hours
5:43
18:45
24:28
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