Digestion a thin-walled expanded portion of the alimentary tract used for the storage of food prior to digestion. In some birds it is an expanded, muscular pouch near the gullet or throat. In adult doves and pigeons, the crop can produce crop milk to feed newly hatched birds. Certain insects may have a crop or enlarged esophagus. Herbivores have evolved cecums (or an abomasum in the case of ruminants). Ruminants have a fore-stomach with four chambers. These are the rumen, reticulum, omasum, and abomasum. In the first two chambers, the rumen and the reticulum, the food is mixed with saliva and
Birds of the West Indies Birds of the West Indies Birds of the West Indies () is a book containing exhaustive coverage of the 400+ species of birds found in the Caribbean Sea, excluding the ABC islands, and Trinidad and Tobago, which are considered bio-geographically as part of South America. Written by ornithologist James Bond, the book was first published as "A Field Guide to the Birds of the West Indies" in 1936 by the Academy of Natural Sciences as part of the "International Series". It has been reprinted several times since then, including as one of the Peterson Field Guides series (PFG 18), a