The Annual Cycle of Purple Martins

Описание к видео The Annual Cycle of Purple Martins

www.purplemartin.org This video by Larry Melcher, gives a general explanation of how the Purple Martin depends on man. It explains the migration from early Spring when martins just arrive, completely through the nest cycle and includes pre-migratory roost footage as the Purple Martins begin their journey to winter grounds in South America.

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