Mainly dry grasses and twigs.
Purple finches are seed eaters, fond of sunflower seed at bird feeders. They glean seed and buds from trees and shrubs.
A griffin's nest is made of gold.
Purple finches migrate mainly because the food supply becomes depleted in winter in the northern areas where they nest. They nest in Canada and northern U.S., and migrate through the interior of the country to southern states.
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.
A nest. A man-made shelter is called a cote.
Yes a robin made a nest in a tree and I saw the robin leave and the dove stole the nest
Bird's nest soup is a Chinese delicacy. It is made from the nest of a swiftlet, a bird in southeast Asia.
The heron is a large wading bird which preys on fish. Its nest is generally made out of branches and twigs.
There are at least one finch species everywhere but Antarctica.
a scrape nest
wood
It depends how you are using it. If you say "The bird made a nest in the tree" nest is a noun. If you use it like "The bird nested in the birdhouse" then nest is the verb.