In his article on the birds of Sumba (anteà pp. 196—204) Mr. Büttikofer has enumerated 32 species from this seldom visited island, but, in stating that Dr. ten Kate’s collection was the first one from there, he has overlooked the fact, that I published in the year 1881, in the „Verhandlungen der k.k. zoologisch-botanischen Gesellschaft in Wien” pp. 759—767, a list of birds from Sumba, based upon materials received from Dr. Riedel, the well known and meritorious investigator and collector on the islands of the eastern half of the Indian Archipelago, in which list I already enumerated 40 species.