Another name for bird-watchers is idiots-that-spend-their-time-staring-at-birds-for-fun.
Its a twitcher.
Its an ornithologist.
Earth? Birds are found on every continent, and so are birders. Captive birds are kept in aviaries.
The red birds are cardinals and the yellow birds are woodpeckers. It's not what they look like in the wild though. They are animated and are cartoons. The others are mainly made up.