Insights: Migration

Seasonal trends and migration tracking.
In plain English
  • 5 species arrived in the last two weeks after being absent โ€” most recently Stieglitz.
  • 30-day diversity is Moderate (Shannon index 1.414), up 5 species compared with this month last year.

๐Ÿฆ… Migration & Seasonal Patterns

๐Ÿ†• 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.
Stieglitz
First seen: Jun 26
5 detections
Common House-Martin
First seen: Jun 26
2 detections
Rotmilan
First seen: Jun 26
2 detections
Hausrotschwanz
First seen: Jun 26
1 detections
Singdrossel
First seen: Jun 26
1 detections
๐Ÿ”‡ 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! โœ“
๐Ÿ“… 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 โ€”
๐Ÿ—“๏ธ Seasonal Presence iClassification Guide:
โ€ข Year-round: Detected across 9+ months
โ€ข Seasonal: Detected across 3-8 months
โ€ข 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.
Stieglitz
5 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common House-Martin
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Rotmilan
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Hausrotschwanz
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Singdrossel
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D