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
Polish Society for the Protection of Birds Dariusz Bukaciński. For OTOP works Małgorzata Górska, the 2010 Goldman Environmental Prize Winner. In April 2008 a website OTOPJunior was created in order to encourage the youngest to get interested in birds. Polish Society for the Protection of Birds Polish Society for the Protection of Birds, OTOP (from Polish name: Ogólnopolskie Towarzystwo Ochrony Ptaków) – Non-governmental organization set up in Poland in 1991. Among OTOP's tasks are preserving wild living birds, their nests, gathering information about them and study their life. Furthermore, OTOP popularize ornithology among people from various social groups and different ages. OTOP is the Polish partner to