School of Life Sciences | Ask A Biologist

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Why is Rudolp's nose red?

Bird Details

Perching Perching

Blue-gray Gnatcatcher

Polioptila caerulea

Blue-gray Gnatcatcher
Length: 4 in. (11 cm)
This gnatcatcher occurs in a wide variety of habitats but is most common in tall forest and riparian areas at mid elevations. It hunts actively and conspicuously for insects on the leaves and vegetation of trees and tall bushes with its tail constantly moving up and down and to the side. During the winter it descends to lower elevations and frequently forages in mixed species flocks that include other species of gnatcatchers in the west. Its small cup nest is balanced on top of a large branch and consists of lichens, plant down and spider webbing. The four-digit banding code is BGGN.
blue_gray_gnatcatcher.jpg

Male
copyright Herbert Clarke

Chaparral
Chaparral

Fir forest
Fir forest

Oak-pine woodland
Oak-pine woodland

Riparian / River forest
Riparian / River forest

Shrubs
Shrubs

Savanna
Savanna

Mesquite bosque
Mesquite bosque

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Male
Grating (sound type)
Bird Song
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Male
Grating (sound type)
Bird Song
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CR_BGGN_2_060901_S.jpg
Male
Grating (sound type)
Bird Song

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CR_BGGN_3_053103_S.jpg
Male
Grating (sound type)
Bird Song

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Be part of Ask A Biologist

by volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteer page to get the process started.