Tree Swallow – 5/4/11

Observer: Paul Lauenstein

Observation Date: 5/4/11

Observation Time: 1:00 p.m.

Observation Location: near Gavins Pond Dam

Common Name: Tree swallow

Scientific Name: Tachycineta bicolor

Comments: Tree swallows compete for bluebird nesting boxes. Bluebird house are often set out in pairs. One box gets taken by a pair of tree swallows. They drive other tree swallows away from the other box, but allow bluebirds to move in.

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Tree Swallow