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

Pacific-slope Flycatcher

Empidonax difficilis

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered Endemic
10–20% · With luck
overall probability at Reserva de la Biosfera Mariposa Monarca
26 Verified records at Reserva de la Biosfera Mariposa Monarca
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 →

10–20% of wildlife watchers report a Pacific-slope Flycatcher sighting in Reserva de la Biosfera Mariposa Monarca, based on 26 days of visitor records from GBIF citizen-science data.

Closest Relatives at Reserva de la Biosfera Mariposa Monarca

Buff-breasted Flycatcher
LC

Buff-breasted Flycatcher

☀️ Diurnal Bird

Empidonax fulvifrons

5–10% · With luck
Pine Flycatcher
LC

Pine Flycatcher

☀️ Diurnal Bird

Empidonax affinis

5–10% · With luck
Hammond's Flycatcher
LC

Hammond's Flycatcher

☀️ Diurnal Bird

Empidonax hammondii

<5% · Rare
Dusky Flycatcher
LC

Dusky Flycatcher

☀️ Diurnal Bird

Empidonax oberholseri

Insufficient data
Least Flycatcher
LC

Least Flycatcher

☀️ Diurnal Bird

Empidonax minimus

Insufficient data
Vermilion Flycatcher
LC

Vermilion Flycatcher

☀️ Diurnal Bird

Pyrocephalus rubinus

40–50% · Likely
Greater Pewee
LC

Greater Pewee

☀️ Diurnal Bird

Contopus pertinax

30–40% · Possible
Cassin's Kingbird
LC

Cassin's Kingbird

☀️ Diurnal Bird

Tyrannus vociferans

20–30% · Possible
Tufted Flycatcher
LC

Tufted Flycatcher

☀️ Diurnal Bird

Mitrephanes phaeocercus

10–20% · With luck
Black Phoebe
LC

Black Phoebe

☀️ Diurnal Bird

Sayornis nigricans

5–10% · With luck
Olive-sided Flycatcher
LC

Olive-sided Flycatcher

☀️ Diurnal Bird

Contopus cooperi

Insufficient data
Dusky-capped Flycatcher
LC

Dusky-capped Flycatcher

☀️ Diurnal Bird

Myiarchus tuberculifer

Insufficient data

📅 Monthly Probability

10–20
Jan
10–20
Feb
10–20
Mar
10–20
Apr
40–50
May
20–30
Jun
10–20
Jul
10–20
Aug
10–20
Sep
5–10
Oct
5–10
Nov
5–10
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 Reserva de la Biosfera Mariposa Monarca?

About 14% of wildlife watchers report a Pacific-slope Flycatcher sighting in Reserva de la Biosfera Mariposa Monarca, based on 26 days of visitor records from GBIF citizen-science data.

When is the best time to see Pacific-slope Flycatcher in Reserva de la Biosfera Mariposa Monarca?

May has the highest sighting rate for Pacific-slope Flycatcher in Reserva de la Biosfera Mariposa Monarca in our monthly data.

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