Photos show rare bird with both male and female plumage
It’s only the second documented sighting of the phenomenon in the green honeycreeper
For migrating birds, cities are a trap
Artificial light sources are the number two indicator for where birds may land during their stopovers
JWM: Herbicide treatment benefits Minnesota marsh birds
Species increase in abundance three years after spraying the chemicals
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What turned a Hawaiian wildlife refuge pond bright pink?
Biologists suspect drought contributed to the growth of bacteria that thrive in salty waters
North American birds shed their human names
The American Ornithological Society is renaming some 80 species
Study finds flame retardants widespread in wildlife
The chemicals can affect their ability to reproduce
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In the cities, male sparrows do it all
Urban males defend their territories and take care of their chicks
Heat waves harm bird reproduction on farmlands
With no shade, the birds can’t keep cool
Nearly 1,000 birds killed at Chicago building during massive migration
Volunteers collected at least 961 birds