Eastern Bluebird – State birds facts

Eastern Bluebird

Eastern Bluebird

Eastern Bluebird

Eastern Bluebird (Sialia sialis)

Description: Commonly seen perching on fence posts or wire fences, the Eastern Bluebird is a favorite among birders for both its visual appeal and beautiful songs. These birds often have bright and vivid blue plumage, making them a treat to observe closely.
State(s): New York , Missouri

Year Designated: Missouri 1927, :New York: 1970

Overview

Key Facts

Life Span1 to 2 Years
FlightFlying Bird

Conservation Status

Type

Thrushes

Dimensions

Weight27-34 g
Wing Span25-32 cm
Length16-21 cm

Taxonomic Serial Number 179801

Compared to the Average State Bird

How the Eastern Bluebird measures up:

  • Wing span4 cm and 11% smaller than the average state bird’s wingspan (36 cm).
  • Weight51 g and 60% lighter than the average state bird’s weight (85 g)
  • Length6 cm and 22% shorter than the average state bird’s length (27 cm)

Scientific Classification

KingdomPhylumClassFamilySpecies
AnimaliaChordataAvesTurdidaeSialia sialis

Appearance

Appearance Description

Male AppearanceBright, vivid blue on top. Throat and breast are reddish brown. Short straight bill.
Female AppearanceLighter blue than the males. Brown throat and breast. Grey back and crown. Short strait bill.

Behavior

Lifestyle

DietTheir diet is primarily invertebrates like caterpillars, beetles, grashoppers and spiders. They have also been known to eat fruits and berries such as mistletoe, sumac, blueberries, black cherries, tupelo, currants, dogwood, wild holly and juniper berries.
Communication StylesEastern Bluebirds sing low, soft warbles along with melodious songs to attract mates. Paired males sing softer versions of these melodies while the female incubates the brood. There are also several short, distinct calls which each serve a specific function, like signaling the arrival of food or warning others against an oncoming predator.
Migratory BehaviorLong-distance migratory. May migrate as far as 2,000 miles south in the winter. More southern birds may only migrate a short distance, or remain sedentary at their breeding ground all year.

Range of Habitation

Habitation

Habitat

Open woodlands, meadows, farmlands, suburban areas, and orchards.

Predators

hawks, owls, climbing snakes, racoons, and squirrels

Mating and Breeding

Breeding Overview

Breeding BehaviorMales attract females to nest through various displays, including fluttering of their wings and carrying nesting materials in and out of their holes.
Breeding SeasonSpring and Summer
NestingUsually built within preexisting cavities that exist in trees or other high areas. Construction done by females.
Nesting and IncubationThe incubation period is 11-19 days. Fledging occurs after 17-19 days,

Eggs

ColorUsually blue (occasionally white)
Clutch Size3 to 7 egg(s)

Chick description

Eastern Bluebird Eggs

Naked exterior, some small patches of grey down. Eyes closed.

Birding

Birding Facts

Interesting FactEastern Bluebirds that live further north and west tend to lay more eggs than their counterparts in more southern and eastern regions.
Best Season to ObserveAutumnSpring
Observation TipsThe Eastern Bluebirds is usually easy to find and identify due to its bold color and loud call.

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