San Diego Natural History Museum
San Diego Natural History Museum: Fossil Field Guide: Flightless Auk
A look at what fossil evidence reveals about the life and ecological interactions of the flightless auk.
Encyclopedia of Earth
Encyclopedia of Earth: Ornithology: Macaroni Penguin
Information about the macaroni penguin: physical characteristics, behavior, reproduction, distribution, threats to survival, species status, etc. (Published Jan. 15, 2010)
Denver Zoo
Denver Zoo: Emu
The Denver Zoo features a comprehensive overview of the emu focusing on its habitat, range, adaptations, diet, physical characteristics, and more.