Insights: Migration

Seasonal trends and migration tracking.
In plain English
  • 43 species arrived in the last two weeks after being absent — most recently Eurasian Skylark.
  • 30-day diversity is High (Shannon index 2.149), up 43 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.
Eurasian Skylark
First seen: Jul 4
1 detections
Eurasian Coot
First seen: Jul 4
2 detections
Spotted Flycatcher
First seen: Jul 4
1 detections
Goldcrest
First seen: Jul 4
1 detections
Long-tailed Tit
First seen: Jul 3
203 detections
Gray Heron
First seen: Jul 3
1 detections
Eurasian Treecreeper
First seen: Jul 3
1 detections
Carrion Crow
First seen: Jul 3
2 detections
Great Spotted Woodpecker
First seen: Jul 3
9 detections
White Wagtail
First seen: Jul 3
1 detections
Gray Wagtail
First seen: Jul 3
1 detections
Great Tit
First seen: Jul 3
7 detections
Eurasian Green Woodpecker
First seen: Jul 3
2 detections
Eurasian Bullfinch
First seen: Jul 3
2 detections
Green-winged Teal
First seen: Jul 2
1 detections
Common Swift
First seen: Jul 2
9 detections
Short-toed Treecreeper
First seen: Jul 2
1 detections
Common House-Martin
First seen: Jul 2
8 detections
Reed Bunting
First seen: Jul 2
1 detections
European Robin
First seen: Jul 2
219 detections
Eurasian Kestrel
First seen: Jul 2
2 detections
Eurasian Moorhen
First seen: Jul 2
1 detections
Eurasian Jay
First seen: Jul 2
4 detections
Eurasian Collared-Dove
First seen: Jul 2
130 detections
European Starling
First seen: Jul 2
54 detections
Eurasian Wren
First seen: Jul 2
210 detections
Song Thrush
First seen: Jul 2
3 detections
Eurasian Sparrowhawk
First seen: Jul 1
1 detections
Tree Pipit
First seen: Jul 1
17 detections
European Goldfinch
First seen: Jul 1
1,780 detections
European Greenfinch
First seen: Jul 1
6 detections
Common Wood-Pigeon
First seen: Jul 1
140 detections
Rook
First seen: Jul 1
3 detections
Eurasian Jackdaw
First seen: Jul 1
51 detections
Eurasian Blue Tit
First seen: Jul 1
372 detections
Barn Swallow
First seen: Jul 1
153 detections
Herring Gull
First seen: Jul 1
26 detections
Eurasian Curlew
First seen: Jul 1
2 detections
House Sparrow
First seen: Jul 1
374 detections
Common Chiffchaff
First seen: Jul 1
3 detections
Eurasian Magpie
First seen: Jul 1
286 detections
Dunnock
First seen: Jul 1
77 detections
Eurasian Blackbird
First seen: Jul 1
7 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.
All regular species still active! ✓
📅 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 Goldfinch
1,780 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
House Sparrow
374 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Blue Tit
372 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Magpie
286 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Robin
219 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Wren
210 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Long-tailed Tit
203 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Barn Swallow
153 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Wood-Pigeon
140 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Collared-Dove
130 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Dunnock
77 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Starling
54 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Jackdaw
51 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Herring Gull
26 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Tree Pipit
17 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Swift
9 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Great Spotted Woodpecker
9 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common House-Martin
8 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Blackbird
7 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Great Tit
7 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Greenfinch
6 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Jay
4 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Chiffchaff
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Rook
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Song Thrush
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Carrion Crow
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Bullfinch
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Coot
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Curlew
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Green Woodpecker
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Kestrel
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Moorhen
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Skylark
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Sparrowhawk
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Eurasian Treecreeper
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Goldcrest
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Gray Heron
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Gray Wagtail
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Green-winged Teal
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Reed Bunting
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Short-toed Treecreeper
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Spotted Flycatcher
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
White Wagtail
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D