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Project Noah Nature School
Progne subis
This is the largest swallow species in North America. These cavity nesters are almost entirely dependent on man-made gourd nests in some parts of the Eastern United States, as their numbers decreased greatly after the introduction of European starlings, which competed with them for cavities in the same areas.
Howell Woods Nature Reserve
Spotted on Apr 15, 2015
Submitted on Jun 24, 2015
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