Willow Flycatcher
Empidonax traillii
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyTyrannidae (Tirànids)
- GenusEmpidonax (Empidonax Flycatchers)
- SpeciesEmpidonax traillii (Willow Flycatcher)
Closest Relatives at Zion National Park
Pacific-slope Flycatcher
Empidonax difficilis
Dusky Flycatcher
Empidonax oberholseri
Gray Flycatcher
Empidonax wrightii
Hammond's Flycatcher
Empidonax hammondii
Ash-throated Flycatcher
Myiarchus cinerascens
Black Phoebe
Sayornis nigricans
Say's Phoebe
Sayornis saya
Western Kingbird
Tyrannus verticalis
Western Wood-Pewee
Contopus sordidulus
Vermilion Flycatcher
Pyrocephalus rubinus
Cassin's Kingbird
Tyrannus vociferans
Olive-sided Flycatcher
Contopus cooperi
📅 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 Willow Flycatcher in Zion National Park?
About 0% of visitor-days record a Willow Flycatcher sighting in Zion National Park, based on 5 observer-days of citizen-science data from GBIF.
When is the best time to see Willow Flycatcher in Zion National Park?
August has the highest sighting rate for Willow Flycatcher in Zion National Park in our monthly data.