Based on the clue 'birds known to have attacked humans include cassow...', what is the answer?

Based on the clue 'birds bees perform this transfer of gametes from ...', what is the answer? Based on the clue 'birds brain whos known as the father of comedy', what is the answer? Based on the clue 'birds evolved from dinosaurs during this geologic ...', what is the answer? Based on the clue 'birds found only on this continent include hoatzin...', what is the answer? Based on the clue 'birds of a feather or a low value poker hand', what is the answer? Based on the clue 'birds reptiles some mammals have a nectitating me...', what is the answer? Based on the clue 'birds that call this country home include the gala...', what is the answer? Based on the clue 'birds use these also called thermal columns to soa...', what is the answer?