Tuesday, November 1, 2016

Bushtit

Bushtits are foliage-gleaning specialists, as they hunt for insects and spiders. They usually travel in flocks. Unlike this individual in the Nisqually National Wildlife Refuge near Olympia, Bushtits more often forage in foliage rather than on stems or branches (Sloane 2001).

Genetic studies reveal that Bushtits are the only New World member of the family Aegithalidae (long-tailed tits). The research further suggests that Bushtit ancestors arrived in North America by way of the Bering land bridge 10-12 million years ago. They are now found in western Canada, United States, and in the mountains of Mexico and Central America.

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