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
Organisation for the Preservation of Birds and their Habitat Organisation for the Preservation of Birds and their Habitat Burung Indonesia (Indonesian for: "BirdLife Indonesia Association"), official name: Perhimpunan Pelestarian Burung Liar Indonesia or "BirdLife Indonesia Association", is the affiliate of Birdlife International in Indonesia. It was founded on July 15, 2002 with the headquarter in Bogor, Java. In 2014 the organisation had about 80 employees and six field offices. Indonesia has an enormous biodiversity because the Wallace Line and Lydekker Line splits the archipelago into three biogeographic regions . Because of this, there are both bird species of Asian origin as well as of Australian origin that live here.