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

Pacific-slope Flycatcher

Empidonax difficilis

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
20–30% · Possible
overall probability at Yosemite National Park
701 Verified records at Yosemite 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 →

20–30% of wildlife watchers report a Pacific-slope Flycatcher sighting in Yosemite National Park, based on 701 days of visitor records from GBIF citizen-science data.

Closest Relatives at Yosemite National Park

Dusky Flycatcher
LC

Dusky Flycatcher

☀️ Diurnal Bird

Empidonax oberholseri

20–30% · Possible
Hammond's Flycatcher
LC

Hammond's Flycatcher

☀️ Diurnal Bird

Empidonax hammondii

5–10% · With luck
Willow Flycatcher
LC

Willow Flycatcher

☀️ Diurnal Bird

Empidonax traillii

<5% · Rare
Gray Flycatcher
LC

Gray Flycatcher

☀️ Diurnal Bird

Empidonax wrightii

<5% · Rare
Western Wood-Pewee
LC Endemic

Western Wood-Pewee

☀️ Diurnal Bird

Contopus sordidulus

40–50% · Likely
Black Phoebe
LC

Black Phoebe

☀️ Diurnal Bird

Sayornis nigricans

20–30% · Possible
Olive-sided Flycatcher
LC

Olive-sided Flycatcher

☀️ Diurnal Bird

Contopus cooperi

10–20% · With luck
Ash-throated Flycatcher
LC

Ash-throated Flycatcher

☀️ Diurnal Bird

Myiarchus cinerascens

<5% · Rare
Scissor-tailed Flycatcher
LC

Scissor-tailed Flycatcher

☀️ Diurnal Bird

Tyrannus forficatus

Insufficient data
Western Kingbird
LC

Western Kingbird

☀️ Diurnal Bird

Tyrannus verticalis

<5% · Rare
Say's Phoebe
LC Endemic

Say's Phoebe

☀️ Diurnal Bird

Sayornis saya

<5% · Rare
Dark-eyed Junco
LC

Dark-eyed Junco

☀️ Diurnal Bird

Junco hyemalis

80–90% · Very likely

📅 Monthly Probability

5–10
Jan
<5
Feb
<5
Mar
10–20
Apr
30–40
May
20–30
Jun
20–30
Jul
10–20
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 Yosemite National Park?

About 20% of wildlife watchers report a Pacific-slope Flycatcher sighting in Yosemite National Park, based on 701 days of visitor records from GBIF citizen-science data.

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

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

← Back to Yosemite National Park