Eastern Bluebird
Eastern BluebirdEastern BluebirdEastern BluebirdEastern Bluebird

Eastern Bluebird

Sialia sialis

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
20–30% · Possible
overall probability at Reserva de la Biosfera Mariposa Monarca
45 Verified records at Reserva de la Biosfera Mariposa Monarca
December Best month highest sighting rate
☀️ Diurnal When it's active during daytime hours (6am–6pm)

The eastern bluebird (Sialia sialis) is a small North American migratory thrush found in open woodlands, farmlands, and orchards. The bright-blue breeding plumage of the male, easily observed on a wire or open perch, makes this species a favorite of birders. The male's call includes sometimes soft warbles of jeew or chir-wi, or the melodious song chiti WEEW wewidoo. It is the state bird of Missouri and New York. Wikipedia →

20–30% of wildlife watchers report a Eastern Bluebird sighting in Reserva de la Biosfera Mariposa Monarca, based on 45 days of visitor records from GBIF citizen-science data.

Closest Relatives at Reserva de la Biosfera Mariposa Monarca

Western Bluebird
LC

Western Bluebird

☀️ Diurnal Bird

Sialia mexicana

10–20% · With luck
American Robin
LC Endemic

American Robin

☀️ Diurnal Bird

Turdus migratorius

40–50% · Likely
Brown-backed Solitaire
LC

Brown-backed Solitaire

☀️ Diurnal Bird

Myadestes occidentalis

40–50% · Likely
Russet Nightingale-Thrush
LC Endemic

Russet Nightingale-Thrush

☀️ Diurnal Bird

Catharus occidentalis

10–20% · With luck
Orange-billed Nightingale-Thrush
LC

Orange-billed Nightingale-Thrush

☀️ Diurnal Bird

Catharus aurantiirostris

10–20% · With luck
White-throated Thrush
LC

White-throated Thrush

☀️ Diurnal Bird

Turdus assimilis

5–10% · With luck
Rufous-backed Robin
LC Endemic

Rufous-backed Robin

☀️ Diurnal Bird

Turdus rufopalliatus

5–10% · With luck
Hermit Thrush
LC

Hermit Thrush

☀️ Diurnal Bird

Catharus guttatus

5–10% · With luck
Aztec Thrush
LC Endemic

Aztec Thrush

☀️ Diurnal Bird

Ridgwayia pinicola

<5% · Rare
Ruddy-capped Nightingale-Thrush
LC

Ruddy-capped Nightingale-Thrush

☀️ Diurnal Bird

Catharus frantzii

Insufficient data
Swainson's Thrush
LC

Swainson's Thrush

☀️ Diurnal Bird

Catharus ustulatus

Insufficient data
Yellow-eyed Junco
LC Endemic

Yellow-eyed Junco

☀️ Diurnal Bird

Junco phaeonotus

70–80% · Very likely

📅 Monthly Probability

10–20
Jan
10–20
Feb
30–40
Mar
20–30
Apr
30–40
May
10–20
Jun
20–30
Jul
10–20
Aug
20–30
Sep
30–40
Oct
10–20
Nov
40–50
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 Shenandoah National Park 🇺🇸 United States
60–70%
2 Great Smoky Mountains National Park 🇺🇸 United States
40–50%
3 Congaree National Park 🇺🇸 United States
20–30%
4 Reserva de la Biosfera Mariposa Monarca 🇲🇽 Mexico
20–30%
5 Celestún Biosphere Reserve 🇲🇽 Mexico
10–20%
6 Celaque National Park 🇭🇳 Honduras
10–20%
7 Point Pelee National Park 🇨🇦 Canada
10–20%
8 Acadia National Park 🇺🇸 United States
5–10%
9 Big Cypress National Preserve 🇺🇸 United States
<5%
10 La Tigra National Park 🇭🇳 Honduras
<5%
11 Badlands National Park 🇺🇸 United States
<5%
12 Big Bend National Park 🇺🇸 United States
<5%
13 Guadalupe Mountains National Park 🇺🇸 United States
<5%
14 Riding Mountain National Park 🇨🇦 Canada
<5%
15 Isle Royale National Park 🇺🇸 United States
<5%
16 Cumbres de Monterrey National Park 🇲🇽 Mexico
<5%
17 Everglades National Park 🇺🇸 United States
<5%
18 Voyageurs National Park 🇺🇸 United States
Insufficient data

Quick answers

What are the chances of seeing a Eastern Bluebird in Reserva de la Biosfera Mariposa Monarca?

About 24% of wildlife watchers report a Eastern Bluebird sighting in Reserva de la Biosfera Mariposa Monarca, based on 45 days of visitor records from GBIF citizen-science data.

When is the best time to see Eastern Bluebird in Reserva de la Biosfera Mariposa Monarca?

December has the highest sighting rate for Eastern Bluebird in Reserva de la Biosfera Mariposa Monarca in our monthly data.

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