Caspian Hyrcanian mixed forests an important resting area for birds migrating between Russia and Africa and is thus a key habitat for many bird species. Some outstanding birds that can be found here are the greylag goose ("Anser anser"), white-fronted goose ("Anser albifrons"), Little bustard ("Tetrax tetrax"), glossy ibis ("Plegadis falcinellus"), Eurasian spoonbill ("Platalea leucorodia"), night heron ("Nycticorax nycticorax"), red-breasted goose ("Branta ruficollis"), peregrine falcon ("Falco peregrinus"), Dalmatian pelican ("Pelecanus crispus"), Western cattle egret ("Bubulcus ibis"), squacco heron ("Ardeola ralloides"), greater flamingo ("Phoenicopterus roseus"), white-headed duck ("Oxyura leucocephala"), and Caspian snowcock ("Tetraogallus caspius"). The diversity and endemism of the species represented in the ecoregion
Porphyria cutanea tarda Porphyria cutanea tarda Porphyria cutanea tarda (PCT) is the most common subtype of porphyria. The disease is named because it is a porphyria that often presents with skin manifestations later in life. The disorder results from low levels of the enzyme responsible for the fifth step in heme production. Heme is a vital molecule for all of the body's organs. It is a component of hemoglobin, the molecule that carries oxygen in the blood. Hepatoerythropoietic porphyria has been described as a homozygous form of porphyria cutanea tarda, although it can also be caused if two different mutations occur at the