Summary: Geolocators are revealing fascinating information about the lives of migratory birds. These devices are so light that they can be mounted on the backs of even small birds like the Wood Thrush pictured here with its nestlings.
Summary: Geolocators are revealing fascinating information about the lives of migratory birds. These devices are so light that they can be mounted on the backs of even small birds like the Wood Thrush pictured here with its nestlings.