 Specialities and spectacular species include scissor-tailed kite, Nubian bustard, Arabian bustard, houbara bustard Egyptian plover, golden nightjar, chestnut-bellied starling, Kordofan lark and Sudan golden sparrow.The coastal wetlands are of immense importance for over two million wintering Western Palearctic waders, from fifteen different species including dunlin, bar-tailed godwit, curlew sandpiper and common redshank each numbering over 100,000 birds.Other wintering species include more than 30,000 greater flamingos Breeding birds include great white pelican, reed cormorant, gull-billed tern, Caspian tern, royal tern and common tern, together with two unique subspecies of grey heron "Ardea cinerea monicae" and Eurasian spoonbill "Platalea leucorodia balsaci" and an outpost of the western reef heron.