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Bird name:

Blue-gray Gnatcatcher

Polioptila caeruleaOrder: PASSERIFORMES Family: Old World Warblers and Gnatcatchers (Sylviidae)
Codes: Common Name: BGGN Scientific Name: POLCAE ITIS Taxonomic No.: 179853
Least Concern
 
Blue-gray Gnatcatcher
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Overview

Blue-gray Gnatcatcher: Small, flycatcher-like perching bird, blue-gray upperparts, white underparts, prominent white eye-ring. Wings are dark. Black tail is long and white-edged. Forages in thickets, trees and shrubs for insects, their eggs and larvae. Weak fluttering flight on shallow wing beats.

Range and Habitat

Blue-gray Gnatcatcher: Breeds from northern California, Colorado, southern Great Lakes region, southern Ontario, and New Hampshire southward. Spends winters from southern California to the Gulf coast and the Carolinas. Preferred habitats include deciduous woodlands, streamside thickets, live oaks, pinyon-juniper, and chaparral.

Topo Map: Perching-like Body


Listen to Call

Voice Text

"zee-you- zee-you"

Interesting Facts

 The Blue-gray Gnatcatcher is the northernmost occurring species of gnatcatcher, and the only truly migratory one.

 By flicking its white-edged tail from side to side, the gnatcatcher may scare up hiding insects. They remove the wings of larger insects and beat large prey on a perch.

 Their breeding range is expanding northward, especially in eastern North America.


Bird Term Glossary



Author

Gary Owen Dick

Artist

Imran Kahn

Splitbar
Range Map for Blue-gray Gnatcatcher

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Family Gnatcatchers and Kinglets (Sylviidae)_blue
Species Polioptila caerulea
Length4.25 Inches
Wingspan6.125 Inches

Blue-gray Gnatcatcher

Blue-gray Gnatcatcher: Small, flycatcher-like perching bird, blue-gray upperparts, white underparts, prominent white eye-ring. Wings are dark. Black tail is long and white-edged. Forages in thickets, trees and shrubs for insects, their eggs and larvae. Weak fluttering flight on shallow wing beats.

● Song: "zee-you- zee-you"

● Foraging & Feeding: Blue-gray Gnatcatcher: Eats aphids, hemipterans, beetles, moths, butterflies, flies, ants, bees, wasps, and spiders; forages by moving up and down outer branches of trees or shrubs.

● Breeding & nesting: Blue-gray Gnatcatcher: Four or five pale blue eggs, usually with brown flecks, are laid in a small cup nest of plant down and spider webs decorated with lichens and fastened to a horizontal branch at almost any height above the ground. Both parents incubate eggs for 13 days.

● Similar species: Blue-gray Gnatcatcher: Other male gnatcatchers have variable amounts of black (depending on species, season, and age) on crown. Other female gnatcatchers have brown-tinged tails.

Flight Pattern

Weak fluttering flight with shallow wing beats.
Blue-gray Gnatcatcher Body Illustration
● Range & Habitat: Blue-gray Gnatcatcher: Breeds from northern California, Colorado, southern Great Lakes region, southern Ontario, and New Hampshire southward. Spends winters from southern California to the Gulf coast and the Carolinas. Preferred habitats include deciduous woodlands, streamside thickets, live oaks, pinyon-juniper, and chaparral.
BreedingMonogamous, Solitary nester
Population
MigrationMigratory
Weight0.2 Ounces
Perching-like BodyX
UnderpartsX
Belly, undertail coverts, chest, flanks, and foreneck.
UpperpartsX
Back, rump, hindneck, wings, and crown.
4 and 6 letter alpha codesX

The four letter common name alpha code is is derived from the first two letters of the common first name and the first two letters of common last name. The six letter species name alpha code is derived from the first three letters of the scientific name (genus) and the first three letters of the scientific name (species). See (1) below for the rules used to create the codes..

Four-letter (for English common names) and six-letter (for scientific names) species alpha codes were developed by Pyle and DeSante (2003, North American Bird-Bander 28:64-79) to reflect A.O.U. taxonomy and nomenclature (A.O.U. 1998) as modified by Supplements 42 (Auk 117:847-858, 2000) and 43 (Auk 119:897-906, 2002). The list has been updated by Pyle and DeSante to reflect changes reported by the A.O.U from 2003 through 2006.

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ITIS CodesX

The Integrated Taxonomic Information System (ITIS) was established in the mid-1990�s as a cooperative project among several federal agencies to improve and expand upon taxonomic data (known as the NODC Taxonomic Code) maintained by the National Oceanographic Data Center (NODC), National Oceanic and Atmospheric Administration (NOAA).

To find the ITIS page for a bird species go to the ITIS web site advanced search and report page at http://www.itis.gov/advanced_search.html. You can enter the TSN or the common name of the bird. It will return the ITIS page for that bird. Another way to obtain the ITIS page is to use the Google search engine. Enter the string ITIS followed by the taxonomic ID, for example "ITIS 178041" will return the page for the Allen's Hummingbird.

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Parts of a Standing birdX
Head Feathers and MarkingsX
Parts of a Flying birdX