Loons abandon their eggs due to black fly outbreak in Northern Wisconsin
Glen Moberg, Wisconsin Public Radio
An outbreak of black flies in northern Wisconsin is causing nesting loons to abandon their eggs in record numbers.
The loons are being affected by a larger-than-normal swarm of one specific species of black fly, according to Chapman University researcher Walter Piper.
“2014 has been a devastating year for black flies,” said Piper. “There is a species, simulium annulus, that is a specialist on attacking and taking blood from loons.“
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