Migratory birds of the world - Animals in the Habitats, and Biodiversity

Classified animal picture guide. Highlighting the link of species shows the images, and clicking a link shows Evolutionary Tree.
Bird migration is the annual journey to move between the same two places for their food or breeding. The distance between the two places are from massive movement to local movement, and the size of the group at same migration is from massive to few or individual. The explanation in brackets is the habitats they live and the distance to migrate.