A significant proportion of the population of each of half a dozen Western Palearctic bird species, that could easily become extinct within thirty or forty years, spend a sizeable part of their annual cycle in Tanzania.
The six species of particular concern are: (Endangered) Basra Reed Warbler; (Vulnerable) Lesser Kestrel; (Near threatened) Pallid Harrier, Corncrake, Black-tailed Godwit and European Roller.
