Tree Swallow
Tachycineta bicolor
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyHirundinidae (Swallows and Martins)
- GenusTachycineta (Tachycineta Swallows)
- SpeciesTachycineta bicolor (Tree Swallow)
Closest Relatives at Redwood National Park
Violet-green Swallow
Tachycineta thalassina
Barn Swallow
Hirundo rustica
Cliff Swallow
Petrochelidon pyrrhonota
Northern Rough-winged Swallow
Stelgidopteryx serripennis
Purple Martin
Progne subis
Bank Swallow
Riparia riparia
Steller's Jay
Cyanocitta stelleri
Common Raven
Corvus corax
Song Sparrow
Melospiza melodia
Chestnut-backed Chickadee
Poecile rufescens
Pacific Wren
Troglodytes pacificus
American Robin
Turdus migratorius
📅 Monthly Probability
☀️ When They're Spotted
Most active during daytime hours (6am–6pm) · across all parks (global)
Global Distribution
Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.
where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is) · parks where it occurs — tap a pin for the sighting probability there
Parks Where Found
Quick answers
What are the chances of seeing a Tree Swallow in Redwood National Park?
About 13% of visitor-days record a Tree Swallow sighting in Redwood National Park, based on 277 observer-days of citizen-science data from GBIF.
When is the best time to see Tree Swallow in Redwood National Park?
May has the highest sighting rate for Tree Swallow in Redwood National Park in our monthly data.