Why Do Cliff Swallows Flutter Their Wings When Gathering Mud?

by Larry Jordan on August 17, 2011

For the answer to that question, check out my latest West Coast Beat Writer post over at 10000 Birds! Here’s what the behavior looks like.

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{ 1 comment… read it below or add one }

missing moments August 17, 2011 at 8:04 pm

Found your article on 10000 birds interesting! Such hard work for this guys!


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