Millions of Red-eyed Vireos, Eastern Kingbirds, Chimney Swifts in Costa Rica- All Heading North
10,000 Birds
APRIL 10, 2021
Many Red-eyed Vireos have seen Harpy Eagles , have kept still upon hearing the haunting calls of forest-falcons. Based on population estimates and migration routes, yes, millions, and for some species, many millions! The same goes for Panama, Nicaragua, Honduras, and other places along their migration routes.
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