The Blue-gray Gnatcatcher (Polioptila caerulea) is a very small songbird.
This gnatcatcher species measures 10–13 cm (3.9–5.1 in) and weighs only 5–7 g (0.18–0.25 oz). Adult males are blue-grey on the upperparts with white underparts and have a long slender bill, long black tail and an angry black unibrow. Females are less blue without the unibrow. Both sexes have a white eye ring.
Their breeding habitat includes open deciduous woods and shrublands in southern Ontario, the eastern and southwestern United States, and Mexico. Among gnatcatcher species, this is in the only one to breed in Eastern North America. The gnatcatcher species are common and are increasing in number while expanding to the northeast . They build a cup nest similar in construction to a hummingbird nest on a horizontal tree branch. The incubation period is 13 days for both sexes. Both parents construct the nest and feed the young; they may raise two broods in a season.
The tail is often held upright while defending territory or searching for food.
Greenberg, Russell (2001). Birds of North America. Sean Moore..
|Wikimedia Commons has media related to Polioptila caerulea.|
- Blue-gray Gnatcatcher - Polioptila caerula - USGS Patuxent Bird Identification InfoCenter
- Blue-gray Gnatcatcher Species Account - Cornell Lab of Ornithology
- Blue-grey Gnatcatcher stamps (with RangeMap)-Turks and Caicos
- Blue-grey Gnatcatcher videos on the Internet Bird Collection
- Blue-gray Gnatcatcher photo gallery VIREO
- Blue-gray Gnatcatcher Bird Sound