i dont really no but i suppose they remember the same way we remember where we parked our car
It's instinctive.
Bird's nest soup is a Chinese delicacy. It is made from the nest of a swiftlet, a bird in southeast Asia.
Sometimes they can make out where a nest came from or if it is man-made or not. They will probably live there if they don't have a choice, but some birds would rather build their own nest.
It is literally a birds nest made from edible fibers. Usually a swallow's nest :)
The nest was built by birds.
it looks like a birds nest
Because the design is based on a birds nest. If you look at the contruction of an actual birds nest it is very similar to the bird cage. Especially if viewed from the air.
A nest is often made of organic material and it is where birds lay their eggs. A roost is a place with support where birds commonly gather, not necessarily for laying their eggs.
Te specific study of the birds nest is calle "ornithology".
A birdbox is another term for a nest box, a man-made box provided for wild birds or small animals to nest in.
If the bird built it then it is generally called a nest. If it was made for the bird by a human it is generally called a birdhouse.
Birds mate after and before making a nest
Nestle has 3 birds in a nest on a branch