Pacific-slope Flycatcher
Pacific-slope FlycatcherPacific-slope FlycatcherPacific-slope Flycatcher

Pacific-slope Flycatcher

Empidonax difficilis

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
5–10% · With luck
overall probability at Big Bend National Park
304 Verified records at Big Bend National Park
May Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The western flycatcher (Empidonax difficilis) is a small insectivorous bird in the family Tyrannidae. It is native to western North America, where it breeds in the Rocky Mountains and Pacific Coast forests and mountain ranges from California to Alaska and south to central Mexico; northern populations migrate south to Mexico for the winter. Wikipedia →

5–10% of wildlife watchers report a Pacific-slope Flycatcher sighting in Big Bend National Park, based on 304 days of visitor records from GBIF citizen-science data.

Closest Relatives at Big Bend National Park

Dusky Flycatcher
LC

Dusky Flycatcher

☀️ Diurnal Bird

Empidonax oberholseri

10–20% · With luck
Gray Flycatcher
LC

Gray Flycatcher

☀️ Diurnal Bird

Empidonax wrightii

5–10% · With luck
Cordilleran Flycatcher
LC

Cordilleran Flycatcher

☀️ Diurnal Bird

Empidonax occidentalis

Insufficient data
Hammond's Flycatcher
LC

Hammond's Flycatcher

☀️ Diurnal Bird

Empidonax hammondii

<5% · Rare
Willow Flycatcher
LC

Willow Flycatcher

☀️ Diurnal Bird

Empidonax traillii

<5% · Rare
Least Flycatcher
LC

Least Flycatcher

☀️ Diurnal Bird

Empidonax minimus

Insufficient data
Ash-throated Flycatcher
LC

Ash-throated Flycatcher

☀️ Diurnal Bird

Myiarchus cinerascens

50–60% · Likely
Say's Phoebe
LC Endemic

Say's Phoebe

☀️ Diurnal Bird

Sayornis saya

40–50% · Likely
Vermilion Flycatcher
LC

Vermilion Flycatcher

☀️ Diurnal Bird

Pyrocephalus rubinus

30–40% · Possible
Black Phoebe
LC

Black Phoebe

☀️ Diurnal Bird

Sayornis nigricans

20–30% · Possible
Western Wood-Pewee
LC Endemic

Western Wood-Pewee

☀️ Diurnal Bird

Contopus sordidulus

10–20% · With luck
Western Kingbird
LC

Western Kingbird

☀️ Diurnal Bird

Tyrannus verticalis

10–20% · With luck

📅 Monthly Probability

<5
Jan
<5
Feb
<5
Mar
5–10
Apr
10–20
May
10–20
Jun
10–20
Jul
5–10
Aug
<5
Sep
<5
Oct
<5
Nov
<5
Dec

☀️ When They're Spotted

Most active during daytime hours (6am–6pm) · across all parks (global)

☀️Diurnal
☀️🌙🌙12am6am12pm6pm12am

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

# Park Country Probability
1 Redwood National Park 🇺🇸 United States
20–30%
2 Pacific Rim National Park Reserve 🇨🇦 Canada
20–30%
3 Yosemite National Park 🇺🇸 United States
20–30%
4 Rocky Mountain National Park 🇺🇸 United States
10–20%
5 Great Bear Rainforest 🇨🇦 Canada
10–20%
6 Reserva de la Biosfera Mariposa Monarca 🇲🇽 Mexico
10–20%
7 Channel Islands National Park 🇺🇸 United States
10–20%
8 Olympic National Park 🇺🇸 United States
10–20%
9 Guadalupe Mountains National Park 🇺🇸 United States
10–20%
10 Sequoia and Kings Canyon National Parks 🇺🇸 United States
10–20%
11 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico
5–10%
12 Cumbres de Monterrey National Park 🇲🇽 Mexico
5–10%
13 Big Bend National Park 🇺🇸 United States
5–10%
14 Zion National Park 🇺🇸 United States
5–10%
15 Glacier National Park 🇺🇸 United States
5–10%
16 Banff National Park 🇨🇦 Canada
<5%
17 Bahía de Loreto National Park 🇲🇽 Mexico
<5%
18 Jasper National Park 🇨🇦 Canada
<5%
19 Yellowstone National Park 🇺🇸 United States
<5%
20 Grand Teton National Park 🇺🇸 United States
<5%
21 Grand Canyon National Park 🇺🇸 United States
<5%
22 Death Valley National Park 🇺🇸 United States
<5%
23 Joshua Tree National Park 🇺🇸 United States
<5%
24 Great Smoky Mountains National Park 🇺🇸 United States
Insufficient data
25 Badlands National Park 🇺🇸 United States
Insufficient data

Quick answers

What are the chances of seeing a Pacific-slope Flycatcher in Big Bend National Park?

About 7% of wildlife watchers report a Pacific-slope Flycatcher sighting in Big Bend National Park, based on 304 days of visitor records from GBIF citizen-science data.

When is the best time to see Pacific-slope Flycatcher in Big Bend National Park?

May has the highest sighting rate for Pacific-slope Flycatcher in Big Bend National Park in our monthly data.

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