Crop (anatomy) Crop (anatomy) A crop (sometimes also called a croup or a craw, or ingluvies) is a thin-walled expanded portion of the alimentary tract used for the storage of food prior to digestion. This anatomical structure is found in a wide variety of animals. It has been found in birds, and in invertebrate animals including gastropods (snails and slugs), earthworms, leeches, and insects. Cropping is used by bees to temporarily store nectar of flowers. When bees "suck" nectar, it is stored in their crops. In a bird's digestive system, the crop is an expanded, muscular pouch near the gullet or throat.
Human uses of birds death, being sacred, or being used in heraldry. In terms of entertainment, raptors have been used in falconry, while cagebirds have been kept for their song. Other birds have been raised for the traditional sports of cockfighting and pigeon racing. Birdwatching, too, has grown to become a major leisure activity. Birds feature in a wide variety of art forms, including in painting, sculpture, poetry and prose, film and fashion. Birds also appear in music as well as traditional dance and ballet. In certain cases, such as the bird-and-flower painting of China, birds are central to an artistic genre. Culture consists