Willow Flycatcher
Empidonax traillii
- KingdomAnimalia (Animals)
- PhylumChordata (Cordats)
- ClassAves (Aus)
- OrderPasseriformes
- FamilyTyrannidae (Tirànids)
- GenusEmpidonax (Empidonax Flycatchers)
- SpeciesEmpidonax traillii (Willow Flycatcher)
Closest Relatives at Rocky Mountain National Park
Pacific-slope Flycatcher
Empidonax difficilis
Dusky Flycatcher
Empidonax oberholseri
Cordilleran Flycatcher
Empidonax occidentalis
Hammond's Flycatcher
Empidonax hammondii
Gray Flycatcher
Empidonax wrightii
Least Flycatcher
Empidonax minimus
Western Wood-Pewee
Contopus sordidulus
Olive-sided Flycatcher
Contopus cooperi
Say's Phoebe
Sayornis saya
Eastern Kingbird
Tyrannus tyrannus
Western Kingbird
Tyrannus verticalis
Eastern Phoebe
Sayornis phoebe
📅 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 Rocky Mountain National Park?
About 0% of visitor-days record a Willow Flycatcher sighting in Rocky Mountain National Park, based on 28 observer-days of citizen-science data from GBIF.
When is the best time to see Willow Flycatcher in Rocky Mountain National Park?
July has the highest sighting rate for Willow Flycatcher in Rocky Mountain National Park in our monthly data.