"The California condor began eating seals and whales after the Ice Age, when its regular meals of land animals were wiped off the menu, according to a new study. If the birds - among North America's biggest and rarest - return to eating sea-mammal meat, the flying scavenger's range could expand northward along the Pacific Coast as far as Canada, the study authors say. This would bring the condor's range closer to what it was hundreds of years ago."
Link: Full Article from National Geographic
California Condor image courtesy of US Fish & Wildlife Service