The second Saturday of May is the International Migratory Bird Day. This is a day that focuses on the importance of the conservation of birds through agreements, laws, and treaties. The idea is to target the preservation, threats, and elements of a birds habitat, which is critical for survival.
The Migratory Bird Treaty Act of 1918 implements the protection of migratory birds between the United States and Canada. The original statute began in the 1916 convention between the U.S. and Canada. This act makes it unlawful to pursue, hunt, capture, kill, or sell any bird, living or dead. This includes feathers, eggs, or nests. There are over 800 birds on the list, which include swans, geese, ducks, rails, gallinules, coots, cranes, plovers, oyster catchers, along with many others. The pictures in this post include some of the birds on the list.
Birds protected under the Federal Migratory Bird Treaty Act: http://www.pacificwildlife.org/info/online%20docs/fmbtalist.pdf