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. It was at the bottom of some steps leading from the gun placements at Fort Mason in San Francisco. How many well sites does a sapsucker maintain?
180 
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