A Red-naped Sapsucker and a Townsend’s Warbler
10,000 Birds
MARCH 15, 2014
I have been searching through the internet this evening trying to find support for some behaviour that I witnessed at Fort Mason, San Francisco, this week. Warblers, orioles, kinglets and gnatcatchers have all been seen as have small mammals such as Pine Martins, bats and Red Squirrels but seldom, it seems, is the behaviour documented.
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