I and the Bird: What is a Swallow?
10,000 Birds
SEPTEMBER 26, 2013
Tree Swallows are not so gregarious, preferring a solo nest cavity, but they readily take to nest boxes provided by people in addition to poaching old woodpecker holes. Bank-Swallows Digging Burrows and Building Nests – Larry Jordan, The Birder’s Report. Cliff Swallows and Pest Management – Larry Jordan, 10,000 Birds.
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