The haemoproteids of the avian order Falconiformes

The haemoproteid parasites of the raptors of the avian order Falconiformes are reviewed. In the Falconidae, Haemoproteus erythropi Tartakovskii, 1913 was previously declared a nomen nudum and H. cerchneisi Bhatia, 1938 is synonymized with H. tinnunculi (Wasielewski and Wulker, 1918) Wingstrand, 1947. Along with H. brachiatus Valkyunas and Ezhova, 1989, there are the only valid haemoproteids in this family. In the Accipitridae, H. accipiter Zeiniev, 1975 was previously declared a nomen nudum and H. asturisdussumieri de Mello, 1937 and H. saviannae Tendeiro, 1947 are declared species incertae sedis. Haemoproteus buteonis Wingstrand, 1947, H. figueiredoi Travassos Santos Dias 1953 and H. circus Yakunin and Zhazyltaev, 1977 are synonymized with H. elani de Mello, 1937 and this latter species, together with H. janovyi Greiner and Mundy, 1979 and H. nisi Peirce and Marquiss, 1983, are the only three valid species in this family. No haemoproteids have been described from the Cathartidae, Pandionidae or Sagittari...