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Remarkable
Analysis
Phenology
Record counts
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Totals (date)
Totals (species)
Totals (species x migration site)
Totals by year (species)
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Observation hours
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Totals Jacobssteeg, De Bilt 2026
Year
all years
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1998
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.
Canada Goose
0
8
0
8
0
8
8 (
25 Feb
)
14
1
25 Feb
25 Feb
2.
Barnacle Goose
0
7
0
7
7
0
7 (
7 Feb
)
14
1
7 Feb
7 Feb
3.
goose sp.
0
182
0
182
125
57
175 (
7 Feb
)
29
2
7 Feb
25 Feb
4.
Eurasian White-fronted Goose
61
637
2
700
430
270
343 (
7 Feb
)
100
7
11 Jan
4 Mar
5.
Bewick's Swan
8
0
0
8
8
0
8 (
11 Jan
)
14
1
11 Jan
11 Jan
6.
Egyptian Goose
0
7
0
7
7
0
7 (
24 Feb
)
14
1
24 Feb
24 Feb
7.
Stock Dove
0
10
0
10
3
7
8 (
25 Feb
)
29
2
7 Feb
25 Feb
8.
Woodpigeon
0
24
10
34
3
31
11 (
25 Feb
)
86
6
2 Feb
4 Mar
9.
Lapwing
0
17
0
17
17
0
17 (
25 Feb
)
14
1
25 Feb
25 Feb
10.
Curlew
0
1
0
1
0
1
1 (
20 Feb
)
14
1
20 Feb
20 Feb
11.
Black-headed Gull
0
11
7
18
1
17
10 (
2 Feb
)
43
3
2 Feb
4 Mar
12.
Lesser Black-backed Gull
0
2
9
11
0
11
9 (
4 Mar
)
43
3
7 Feb
4 Mar
13.
White Stork
0
3
0
3
0
3
3 (
25 Feb
)
14
1
25 Feb
25 Feb
14.
Cormorant
0
0
4
4
0
4
4 (
4 Mar
)
14
1
4 Mar
4 Mar
15.
Great White Egret
4
0
0
4
4
0
4 (
11 Jan
)
14
1
11 Jan
11 Jan
16.
Grey Heron
2
0
0
2
2
0
2 (
11 Jan
)
14
1
11 Jan
11 Jan
17.
Common Buzzard
0
5
0
5
0
5
5 (
25 Feb
)
14
1
25 Feb
25 Feb
18.
Kestrel
0
1
0
1
0
1
1 (
25 Feb
)
14
1
25 Feb
25 Feb
19.
Rose-ringed Parakeet
6
0
0
6
1
5
6 (
11 Jan
)
14
1
11 Jan
11 Jan
20.
Jackdaw
0
2
2
4
0
4
2 (
25 Feb
)
29
2
25 Feb
4 Mar
21.
Wood Lark
0
1
0
1
0
1
1 (
25 Feb
)
14
1
25 Feb
25 Feb
22.
Skylark
0
19
2
21
2
19
9 (
7 Feb
)
71
5
7 Feb
4 Mar
23.
Starling
0
36
0
36
17
19
19 (
7 Feb
)
29
2
7 Feb
24 Feb
24.
Redwing
15
17
0
32
17
15
15 (
11 Jan
)
43
3
11 Jan
25 Feb
25.
Fieldfare
0
0
10
10
0
10
10 (
4 Mar
)
14
1
4 Mar
4 Mar
26.
White Wagtail
0
0
2
2
0
2
2 (
4 Mar
)
14
1
4 Mar
4 Mar
27.
Meadow Pipit
0
0
3
3
0
3
3 (
4 Mar
)
14
1
4 Mar
4 Mar
28.
Water Pipit
0
2
0
2
0
2
2 (
25 Feb
)
14
1
25 Feb
25 Feb
29.
Chaffinch
0
35
4
39
13
26
32 (
25 Feb
)
43
3
7 Feb
4 Mar
30.
Hawfinch
6
0
0
6
6
0
6 (
11 Jan
)
14
1
11 Jan
11 Jan
Species
Jan
Feb
Mar
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
31.
Goldfinch
0
4
0
4
0
4
4 (
25 Feb
)
14
1
25 Feb
25 Feb
32.
Siskin
0
103
3
106
12
94
50 (
20 Feb
)
71
5
7 Feb
4 Mar
Species
Jan
Feb
Mar
Totals
S
N
Maximum
Presence
(%)
Presence
(days)
First
Last
Totals
102
1134
58
1294
675
619
100
7
Observation hours
2:30
8:00
2:20
12:50
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