dioecious
yes
Both sexes are usually available for most birds.
Yes, when you separate the sexes. The babies can stay with each other(separate sexes) for a little while because they will fight.
you don't - to control population - separate the sexes
Like all birds, they have two sexes, male and female.
No. They are asexual. Which means they separate in order to reproduce by meiosis creating no variation among the species
Yes. The male and female flower grow on separate trees and pollination is by wind.
Differential migration is simply a phenomenon especially found in birds where different sexes of birds migrate different distances.
No. They are birds. Birds and mammals are separate classes of animal.
No. They are birds. Birds and mammals are separate classes of animal.
Depends on the species. In many birds, the sexes are similar in color. In others, the male is usually the more brightly colored one. Some species, like birds of prey, the sexes look alike, but the female may be somewhat larger.