Bird nests are protected under the Migratory Bird Treaty Act (MBTA). This law says: “No person may take (kill), possess, import, export, transport, sell, purchase, barter, or offer for sale, any migratory bird, or the parts, nests, or eggs of such bird except as may be permitted under the terms of a valid permit…”  Under the MBTA it is illegal to destroy a nest that has eggs or chicks in it or if there are young birds that are still dependent on the nest for survival. It is also illegal for anyone to keep a nest they take out of a tree or find on the ground unless they have a permit to do so issued by the U.S. Fish and Wildlife Service.

http://www.sialis.org/mbta.htm

The above link shows the list of all birds/nests/eggs protected by law…

It is also illegal to collect or have in your possession live or dead non-game native birds (adults or young), bird feathers, nests or eggs, to try to incubate wild bird eggs, to keep nests or eggs even for “show and tell” educational purposes, or to have road-killed birds in your possession without a permit.