goodfellow's best-known ornithological achievement was the scientific discovery of the mikado pheasant in the central mountain ranges of taiwan and its introduction to aviculture. in about 1906 he secured the type specimen, comprising two long black tail feathers obtained from one of his porters who was wearing them in a head-dress. on a later visit to taiwan he obtained eleven live birds, eight males and three females, which were taken to britain and bred successfully in captivity.