Bird Quiz %CODE1% Birds The study of birds is called: ichthyology herpetology ornithology aviology Birds have a ____ heart with _____ circulation. 3 chambered, double loop 4 chambered, double loop 3 chambered, single loop 4 chambered, single loop Birds belong to the phylum ___ and the class ___ chordata, aves vertebrata, aves chordata, vertebrata aves, chordata Which of the following is NOT a key characteristic of birds? feathers furculum hollow bones ectothermic Which of the following organs is NOT present in birds? crop cloaca intestine urinary bladder The bird in the picture has legs adapted for: wading perching grasping swimming The bird in the picture most likely eats: small mammals fish seeds insects Which of the following pairs is most closely related? hawks and ducks sparrows and hawks pelicans and geese bluebirds and robins In birds, the crop leads to the: intestine gizzard esophagus stomach The crop is responsible for: storing food grinding food egg production breathing Score = Correct answers: