Cassin's Vireo

Cassin's Vireo

Vireo cassinii

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

Closest Relatives at Yosemite National Park

Warbling Vireo
LC

Warbling Vireo

☀️ Diurnal Bird

Vireo gilvus

30–40% · Possible
Hutton's Vireo
LC Endemic

Hutton's Vireo

☀️ Diurnal Bird

Vireo huttoni

<5% · Rare
Plumbeous Vireo
LC

Plumbeous Vireo

☀️ Diurnal Bird

Vireo plumbeus

Insufficient data
Dark-eyed Junco
LC

Dark-eyed Junco

☀️ Diurnal Bird

Junco hyemalis

80–90% · Very likely
Steller's Jay
LC Endemic

Steller's Jay

☀️ Diurnal Bird

Cyanocitta stelleri

70–80% · Very likely
American Robin
LC Endemic

American Robin

☀️ Diurnal Bird

Turdus migratorius

70–80% · Very likely
Common Raven
LC

Common Raven

☀️ Diurnal Bird

Corvus corax

70–80% · Very likely
Mountain Chickadee
LC

Mountain Chickadee

☀️ Diurnal Bird

Poecile gambeli

60–70% · Likely
Yellow-rumped Warbler
LC

Yellow-rumped Warbler

☀️ Diurnal Bird

Setophaga coronata

60–70% · Likely
Song Sparrow
LC Endemic

Song Sparrow

☀️ Diurnal Bird

Melospiza melodia

40–50% · Likely
Red-breasted Nuthatch
LC

Red-breasted Nuthatch

☀️ Diurnal Bird

Sitta canadensis

40–50% · Likely
Brown Creeper
LC

Brown Creeper

☀️ Diurnal Bird

Certhia americana

40–50% · Likely

📅 Monthly Probability

0–10
Jan
0–10
Feb
0–10
Mar
20–30
Apr
50–60
May
30–40
Jun
20–30
Jul
10–20
Aug
0–10
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 Yosemite National Park 🇺🇸 United States
20–30%
2 Glacier National Park 🇺🇸 United States
10–20%
3 Jasper National Park 🇨🇦 Canada
0–10%
4 Sequoia and Kings Canyon National Parks 🇺🇸 United States
0–10%
5 Banff National Park 🇨🇦 Canada
0–10%
6 Death Valley National Park 🇺🇸 United States
<5%
7 Zion National Park 🇺🇸 United States
<5%
8 Big Bend National Park 🇺🇸 United States
<5%
9 Great Bear Rainforest 🇨🇦 Canada
<5%
10 Cumbres de Monterrey National Park 🇲🇽 Mexico
<5%
11 Guadalupe Mountains National Park 🇺🇸 United States
<5%
12 Redwood National Park 🇺🇸 United States
<5%
13 Grand Canyon National Park 🇺🇸 United States
<5%
14 Olympic National Park 🇺🇸 United States
<5%
15 Joshua Tree National Park 🇺🇸 United States
<5%
16 Grand Teton National Park 🇺🇸 United States
<5%
17 Rocky Mountain National Park 🇺🇸 United States
<5%
18 Channel Islands National Park 🇺🇸 United States
<5%
19 Reserva de la Biosfera Mariposa Monarca 🇲🇽 Mexico
Insufficient data
20 Yellowstone National Park 🇺🇸 United States
Insufficient data

Quick answers

What are the chances of seeing a Cassin's Vireo in Yosemite National Park?

About 26% of visitor-days record a Cassin's Vireo sighting in Yosemite National Park, based on 888 observer-days of citizen-science data from GBIF.

When is the best time to see Cassin's Vireo in Yosemite National Park?

May has the highest sighting rate for Cassin's Vireo in Yosemite National Park in our monthly data.

← Back to Yosemite National Park