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
The Birds of the District of Geelong, Australia The Birds of the District of Geelong, Australia The Birds of the District of Geelong, Australia is a book published in 1914 by W.J. Griffiths in Geelong, Victoria, Australia. Authored by Charles Frederic Belcher, it was published in octavo format (225 x 144 mm), containing 414 pages bound in navy blue buckram. It is illustrated with numerous black-and-white photographic plates. It contains a systematic list of 244 bird species known to occur within a radius of from the city of Geelong, south-west of Melbourne on the western side of Port Phillip Bay, followed by largely personal reminiscences on the birdlife.