Violet-green Swallow
Tachycineta thalassina
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyHirundinidae (Swallows and Martins)
- GenusTachycineta (Tachycineta Swallows)
- SpeciesTachycineta thalassina (Violet-green Swallow)
The violet-green swallow (Tachycineta thalassina) is a small North American passerine bird in the swallow family. These aerial insectivores are distributed along the west coast from Alaska to Mexico, extending as far east as Montana and Texas. With an appearance very similar to the tree swallow, these individuals can be identified by the white rump side-patches that appear to separate their green back and purple tail. Violet-green swallows are secondary cavity nesters, found in a number of habitats including deciduous and coniferous forest. In addition to nesting in tree holes within these habitats, they are also widely observed nesting in the cracks of large cliffs. Wikipedia →
5–10% of wildlife watchers report a Violet-green Swallow sighting in Denali National Park, based on 178 days of visitor records from GBIF citizen-science data.
Closest Relatives at Denali National Park
Tree Swallow
Tachycineta bicolor
Bank Swallow
Riparia riparia
Cliff Swallow
Petrochelidon pyrrhonota
White-crowned Sparrow
Zonotrichia leucophrys
Dark-eyed Junco
Junco hyemalis
Black-billed Magpie
Pica hudsonia
Gray Jay
Perisoreus canadensis
Common Raven
Corvus corax
Yellow-rumped Warbler
Setophaga coronata
Boreal Chickadee
Poecile hudsonicus
American Robin
Turdus migratorius
Swainson's Thrush
Catharus ustulatus
📅 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 Violet-green Swallow in Denali National Park?
About 6% of wildlife watchers report a Violet-green Swallow sighting in Denali National Park, based on 178 days of visitor records from GBIF citizen-science data.
When is the best time to see Violet-green Swallow in Denali National Park?
July has the highest sighting rate for Violet-green Swallow in Denali National Park in our monthly data.