May 14, 2018

Black flies can kill young birds

In late spring and early summer, black flies emerge from rivers and make life miserable for man, beasts and birds. Females sucks out our blood and leave painful welts. Here in Wisconsin, I've seen them invade the nests of eagles, whooping cranes and peregrine falcons. To avoid the flies, nest babies sometimes jump out like the poor souls in the World Trade Center.

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