A list of the Birds of the Anglo-Egyptian Sudan, based on the collections of Mr. A. L. Butler, Mr. A. Chapman and Capt. H. Lynes, R.N., and Major Cuthbert Christy, R.A.M.C. (T.F.). Part iv (concluded) Pelecanidae-Struthionidae. Ibis London, 1920 1920: (781-855). [Zoological Record Volume 57]