Penguins, woodpeckers,gray jays, crows, ravens, grouse, turkeys, robins, and owls.
that's all i know
When birds fly South for the winter it is called migration.
The birds flew South for their migration in the Winter.
Differential migration is simply a phenomenon especially found in birds where different sexes of birds migrate different distances.
E.P Ramsay has written: 'Notices on the migration of birds in Australia' -- subject(s): Birds, Migration
Janice M. Hughes has written: 'The migration of birds' -- subject(s): Migration, Oiseaux, Birds
6000000...0000000milllion trillion birds
flying with birds
Phenology
use it as the first word e.g. migration is what birds do to survive
H . Elliott McClure has written: 'Migration and survival of the birds of Asia' -- subject(s): Birds, Migration, Parasites
the massive migration has begun. Birds also show migration to survive.
yes