Meanderer
Supreme Member
Partial Migration Helps Explain Where Crows Go in Winter
A crow with a satellite transmitter attached to its back. Photo by Melissa Jones.
“Partial migration”—where some individuals within a population migrate and some don’t—is common among birds and is speculated to be a step on the evolutionary path to complete, long-distance migration, but scientists know very little about how it actually works. A new study from The Auk: Ornithological Advances tracks where American Crows go during the winter and shows that while individuals are consistent in whether they migrate or stay put, partial migration might give them enough flexibility to adapt to changing environmental conditions. (Read More)

A crow with a satellite transmitter attached to its back. Photo by Melissa Jones.
“Partial migration”—where some individuals within a population migrate and some don’t—is common among birds and is speculated to be a step on the evolutionary path to complete, long-distance migration, but scientists know very little about how it actually works. A new study from The Auk: Ornithological Advances tracks where American Crows go during the winter and shows that while individuals are consistent in whether they migrate or stay put, partial migration might give them enough flexibility to adapt to changing environmental conditions. (Read More)