Insights: Migration

Seasonal trends and migration tracking.
In plain English
  • 8 species arrived in the last two weeks after being absent — most recently Eurasian Collared-Dove.
  • Ring-billed Gull has gone quiet: last heard 15 days ago after 17 detections — 9 regulars are on this list.
  • 30-day diversity is Moderate (Shannon index 1.506), up 41 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 Collared-Dove
First seen: Oct 17
1 detections
Red-tailed Hawk
First seen: Oct 12
3 detections
Hairy Woodpecker
First seen: Oct 12
1 detections
Brown Creeper
First seen: Oct 7
1 detections
Pileated Woodpecker
First seen: Oct 7
1 detections
Black-capped Chickadee
First seen: Oct 7
2 detections
Dark-eyed Junco
First seen: Oct 5
2 detections
Northern Shrike
First seen: Oct 5
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.
Ring-billed Gull
17 total · Last: Oct 3
15d ago
Belted Kingfisher
8 total · Last: Oct 3
15d ago
Greater White-fronted Goose
12 total · Last: Sep 24
24d ago
Cedar Waxwing
9 total · Last: Sep 20
28d ago
White-crowned Sparrow
5 total · Last: Sep 20
28d ago
Common Grackle
332 total · Last: Sep 19
29d ago
American Tree Sparrow
5 total · Last: Aug 24
55d ago
European Starling
11 total · Last: Aug 22
57d ago
Solitary Sandpiper
5 total · Last: Aug 16
63d 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.
Black-billed Magpie
14,868 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
House Sparrow
4,196 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
House Finch
1,669 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Red-breasted Nuthatch
839 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Northern Flicker
567 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
American Crow
536 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Grackle
332 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Green-winged Teal
184 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Evening Grosbeak
66 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Raven
65 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Mallard
50 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Pine Siskin
50 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Merlin
38 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
White-throated Sparrow
34 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Pileated Woodpecker
30 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Canada Goose
26 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Ring-necked Pheasant
26 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
American Robin
22 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
White-winged Crossbill
22 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Gadwall
19 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Ring-billed Gull
17 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
White-breasted Nuthatch
16 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Blue Jay
15 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Downy Woodpecker
15 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Greater White-fronted Goose
12 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
American Goldfinch
11 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Black-capped Chickadee
11 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Redpoll
11 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
European Starling
11 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Cedar Waxwing
9 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Belted Kingfisher
8 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Loon
8 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
American Tree Sparrow
5 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Red-tailed Hawk
5 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Solitary Sandpiper
5 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
White-crowned Sparrow
5 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Common Goldeneye
4 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Lapland Longspur
4 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Snow Goose
4 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Bohemian Waxwing
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Dark-eyed Junco
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Townsend's Solitaire
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Tundra Swan
3 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
American Kestrel
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Brewer's Blackbird
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Mountain Chickadee
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Northern Pintail
2 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
American Coot
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Brown Creeper
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D
Cackling Goose
1 detections Transient
J
F
M
A
M
J
J
A
S
O
N
D