Insights: Migration

Seasonal trends and migration tracking.
In plain English
  • 13 species arrived in the last two weeks after being absent — most recently Whooper Swan.
  • Common Wood-Pigeon has gone quiet: last heard 17 days ago after 7,501 detections — 10 regulars are on this list.
  • 30-day diversity is High (Shannon index 2.425), up 69 species compared with this month last year.

🦅 Migration & Seasonal Patterns

🆕 New Arrivals (Last 14 Days) iSpecies appearing in the last 14 days that were absent for the previous 2 weeks. Useful for tracking return migration.
Whooper Swan
First seen: Sep 29
1 detections
Short-toed Treecreeper
First seen: Sep 28
4 detections
Red-billed Chough
First seen: Sep 26
1 detections
Coal Tit
First seen: Sep 25
5 detections
Eurasian Bullfinch
First seen: Sep 24
1 detections
Common Firecrest
First seen: Sep 24
2 detections
Eurasian Treecreeper
First seen: Sep 22
1 detections
Common Snipe
First seen: Sep 22
5 detections
Song Thrush
First seen: Sep 21
4 detections
Little Egret
First seen: Sep 20
1 detections
Eurasian Jay
First seen: Sep 20
1 detections
Graylag Goose
First seen: Sep 19
1 detections
Northern Wheatear
First seen: Sep 15
1 detections
🔇 Gone Quiet iRegular residents that haven't been detected in at least 14 days. This may indicate they have migrated away or changed territories.
Common Wood-Pigeon
7,501 total · Last: Sep 12
17d ago
Bank Swallow
25 total · Last: Sep 12
17d ago
Tree Pipit
13 total · Last: Sep 6
23d ago
Whimbrel
9 total · Last: Sep 2
27d ago
Herring Gull
15 total · Last: Aug 26
34d ago
Great Crested Grebe
7 total · Last: Aug 26
34d ago
House Sparrow
6 total · Last: Aug 23
37d ago
Common Swift
11 total · Last: Aug 16
44d ago
Great Cormorant
9 total · Last: Aug 9
51d ago
Eurasian Blackbird
5 total · Last: Aug 3
57d ago
📅 Year-over-Year Arrival Comparison (2025 vs 2026) iTracking if migratory species arrived earlier or later than they did in the previous calendar year.
Not enough multi-year data yet —
🗓️ Seasonal Presence iClassification Guide:
• Year-round: Detected across 9+ months
• Seasonal: Detected across 3-8 months
• Transient: Detected <3 months

Data Accuracy Disclaimer:
These classifications may be inaccurate if the station has been running for less than a full year, as it lacks seasonal historical context.

Bar height is expected frequency. Purple highlights are actual detections.
Common Wood-Pigeon
7,501 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common House-Martin
7,336 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Magpie
1,434 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Rook
1,395 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Jackdaw
943 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Goldfinch
785 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Robin
679 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
White Wagtail
440 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Dunnock
435 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Collared-Dove
370 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Linnet
360 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Ring-necked Pheasant
223 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Barn Swallow
207 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Buzzard
168 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Canada Goose
157 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Blue Tit
110 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Green Woodpecker
90 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Carrion Crow
76 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Gray Heron
61 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Long-tailed Tit
52 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Golden-Plover
49 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Moorhen
39 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Wren
37 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Great Spotted Woodpecker
37 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Coot
32 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Kestrel
27 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Redwing
26 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Bank Swallow
25 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Hooded Crow
19 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Reed Bunting
19 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Chiffchaff
18 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Siskin
15 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Herring Gull
15 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Greenfinch
13 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Tree Pipit
13 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Water Rail
13 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Oystercatcher
12 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Goldcrest
12 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Swift
11 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Graylag Goose
10 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Great Tit
10 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Great Cormorant
9 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Little Egret
9 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Whimbrel
9 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Black-bellied Plover
7 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Black-headed Gull
7 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Raven
7 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Great Crested Grebe
7 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Snipe
6 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
House Sparrow
6 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D