A bird's beak is an important part of its anatomy, as it is used for feeding, grooming, and even communication. The term 'bird beak' can refer to a variety of different shapes and sizes, and there are several crossword solutions that can be used to describe them. The four-letter solution CERE refers to the curved beak of a parrot or TOUCAN, while NIB is a three-letter solution that describes the pointed beak of a finch or sparrow. BILL is another four-letter solution that is used to describe the long, thin beak of a duck or goose. NEB is a three-letter solution that is used to describe the downward-curving beak of an IBIS or heron, and TOUCAN is a six-letter solution that is used to describe the large, colorful beak of a TOUCAN. Finally, IBIS is a four-letter solution that is used to describe the long, curved beak of an IBIS.