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.
An Annotated Checklist of the Birds of the Oriental Region a discussion of the rationale behind the choice of English names, the systematic list (195 pages), a 17-page references list containing 814 items, and indexes of both English and scientific names. There is also a map of the region covered (supplementing the textual description within the introduction), and a list of eight excluded species. Works which used this work for their taxonomic basis include: Reviews of the checklist can be found in the following: An Annotated Checklist of the Birds of the Oriental Region An Annotated Checklist of the Birds of the Oriental Region is a 1996 softback book published