There are about 10,000 species of birds, ranging from delicious chicken to towering ostriches, from flightless penguins to regal eagles. They include raptors, scavengers, poultry, songbirds, and talkative parrots. There’s always something new to learn about most of them, and right here you have 44 facts about birds in this week’s episode of the mental_floss List Show.