Birds mate after and before making a nest
The nest was built by birds.
Te specific study of the birds nest is calle "ornithology".
A birdhouse.
China
Penguins nest on stones they gather and pile up. Other sea birds that breed on Antarctica's beaches nest in open areas, because there are no land predators.
they mate first then make the nests
to reproduce...
Yes, all birds mate and have nests at one point or another. The process is different with all birds.
It isn't one way for all birds, many will build a nest to attract a mate, then perform courtship rituals then lay their eggs, others will pair up and mate, then build their nest together.
Birds use both their beaks and their claws for nest building.
blue jays mate before they nest.
No, not once they have left it.Many Birds will return to the nest they were born in, or very close, during the next season. They may bring the whole family back.
An Aviary Where They Mate And Reproduce.
Your local hardware store should have bird traps you can use which is your best bet cost $10.00US if that. Is it illegal? No, as of 1981 you can relocate and move birds and nests as long as no harm is done to them as in being killed.
Weaver birds usually make their nest when they're looking for a mate. So in their juvenile years.
Birds have hollow bones, making them lighter. Also, the wing is the shape of an airfoil. And the bird must get enough lift and thrust to overcome gravity and drag. These are the four forces that act on any flying thing.
No, you need a bigger gene pool. ( they would be deformed )