Skip to content
WAnimals
  • Map
  • Species
  • Parks
  • Diving
Log inCreate account
WAnimals

The guide for travellers and animal lovers: discover, plan and share your wild adventures around the world.

Discover wildlife

  • Species
  • Ecosystems
  • Glossary
  • Tags

Explore places

  • Map
  • Countries
  • Parks
  • Diving

Plan experiences

  • Guides

Learn

  • Blog

Resources

  • Help centre
  • Contact
  • Install the app

Follow us

Account

  • Log in
  • Create account

© 2026 WAnimals. All rights reserved.

About usHow we build our profilesTerms of servicePrivacyLegal notice
MapSpeciesParksDiving
  1. Home
  2. Species
  3. Eastern Bluebird

Birds · Passeriformes · Turdidae

Eastern Bluebird

Sialia sialis

Least Concern

The species is abundant and widely distributed; it faces no significant short-term risk.

Spotted something wrong?

The eastern bluebird is an intensely blue-backed bird with an orange breast, much loved in the United States. Its population collapsed in the mid-twentieth century because of competition with introduced starlings and sparrows and the loss of dead trees with holes. The mass installation of nest boxes by volunteers has reversed that decline completely.

Weight

27 g – 34 g

Size

16 cm – 21 cm

Life expectancy

10 years

Diet

Insectivore

Feeds mainly on insects and other invertebrates.

Activity

Diurnal

Active mainly during the day.

Social structure

In pairs

Usually lives in pairs, sometimes for life.

Sighting difficulty

Easy

Temperate forestGrassland
8countries23parks7same family

Fun facts

  • GeneralIts recovery in North America was achieved by putting up millions of nest boxes.
  • Its recovery is down to ordinary citizens: from the 1970s onwards thousands of volunteers put up nest-box trails across the eastern United States, and today there are tens of thousands of boxes maintained by private individuals. The population has multiplied since then.
  • Its blue is not pigment: it comes from the microscopic structure of the feathers, and a crushed feather turns greyish brown.
  • It is the state bird of New York and Missouri, and a popular symbol of happiness in American culture since the early twentieth century.

Life cycle and biology

Skeleton type
Vertebrate - internal bony skeleton (bird)
Habitat and environment
Grassland with scattered trees, orchards, golf courses and woodland edges of eastern North America
Sexual maturity
10.1 months
Gestation / incubation
14 days
Litter / clutch size
4

Sources consulted: https://es.wikipedia.org/wiki/Sialia_sialis

Where to find it

Loading map…

The pins mark the parks where its presence is documented.

Where to see it

Parks and dive sites where this species has been documented — showing 10 of 23.

Related species

Other species in the catalogue with the most in common with Eastern Bluebird — same habitat, park, country, tags or family.

Same taxonomic family
Shares a park
Shares a park
Shares a park
Shares a park
Shares a park

Keep exploring

Based on what we already know about eastern bluebird.

Comments

Share an experience, a fun fact or a tip for seeing the eastern bluebird.

Be the first to comment.

See full glossary
This page in other languages: Español · Deutsch · Français · Português · Italiano
See its range on the interactive map→
EvergladesUnited States
Great Smoky MountainsUnited States
AcadiaUnited States
Mammoth CaveUnited States
Point PeleeCanada
Sierra GordaMexico
CongareeUnited States
BadlandsUnited States
Theodore RooseveltUnited States
Wind CaveUnited States
See all 23 parks
Least Concern

American Robin

Turdus migratorius

Bald EagleLeast Concern

Bald Eagle

Haliaeetus leucocephalus

Least Concern

Wood Duck

Aix sponsa

Least Concern

Mourning Dove

Zenaida macroura

Least Concern

Smooth-billed Ani

Crotophaga ani

Least Concern

Common Nighthawk

Chordeiles minor

CountriesUnited States
ParksEvergladesUnited States
TagsInsectivore
Insectivore
Diurnal
In pairs
Bird
Temperate forest
Grassland
United States
Canada
Mexico
Bermuda
El Salvador
Guatemala
Honduras
Nicaragua