Seasonal changes and food resources .
Who you would call a migration expert would probably depend on which species migration you want information about. A person who specializes in, say, wolves and their migration might be totally different from aperson who specializes in the migration of, say, seagulls.
migration
wildlife
Animal migration or Migration in animals
There is no migration in Antarctica: it is not home to any animal.
Innate behavior
caribou
migration
butterflies and birds
Starvation, harsh climates, and fires.
migration is most common to birds. they move from one place to another because of change in season.
yes, because the animal is having to adapt to survive. Migration is a feature the animal has to survive.