Insights: Migration

Seasonal trends and migration tracking.
In plain English
  • 15 species arrived in the last two weeks after being absent — most recently Coal Tit.
  • Eurasian Green Woodpecker has gone quiet: last heard 17 days ago after 29 detections — 3 regulars are on this list.
  • 30-day diversity is High (Shannon index 2.137), up 30 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.
Coal Tit
First seen: Aug 31
1 detections
Dunlin
First seen: Aug 30
2 detections
Rook
First seen: Aug 30
2 detections
Eurasian Siskin
First seen: Aug 29
1 detections
Black Redstart
First seen: Aug 28
3 detections
Eurasian Moorhen
First seen: Aug 26
3 detections
European Golden-Plover
First seen: Aug 26
1 detections
Short-toed Treecreeper
First seen: Aug 24
1 detections
Western Yellow Wagtail
First seen: Aug 24
2 detections
Redwing
First seen: Aug 24
155 detections
Common Sandpiper
First seen: Aug 23
6 detections
Eurasian Curlew
First seen: Aug 22
1 detections
Meadow Pipit
First seen: Aug 20
1 detections
Common Chaffinch
First seen: Aug 20
3 detections
Eurasian Wigeon
First seen: Aug 20
4 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.
Eurasian Green Woodpecker
29 total · Last: Aug 16
17d ago
Common Swift
33 total · Last: Aug 2
31d ago
Gray Heron
6 total · Last: Jul 17
47d 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.
European Robin
4,822 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
House Sparrow
2,315 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Magpie
1,982 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Blue Tit
1,690 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Dunnock
1,334 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Goldfinch
685 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Wood-Pigeon
556 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Great Tit
532 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Wren
280 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common House-Martin
269 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Tree Pipit
263 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Barn Swallow
199 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Collared-Dove
182 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Redwing
155 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Herring Gull
101 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Water Rail
87 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Starling
82 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Great Spotted Woodpecker
70 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Jackdaw
68 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Chiffchaff
64 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Blackbird
61 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Song Thrush
50 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Goldcrest
42 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Swift
33 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Coot
30 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Green Woodpecker
29 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Gray Wagtail
29 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Reed Bunting
24 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Rook
23 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Greenfinch
21 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Bullfinch
19 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Green Sandpiper
19 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Carrion Crow
18 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Marsh Tit
16 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Long-tailed Tit
15 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Sandpiper
10 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Wigeon
7 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Curlew
6 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Moorhen
6 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Gray Heron
6 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Yellowhammer
6 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Dunlin
5 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Linnet
5 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Chaffinch
4 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Ring-necked Pheasant
4 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Willow Warbler
4 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Black Redstart
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Gadwall
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Green-winged Teal
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Turtle-Dove
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D