He was, indeed, the first to show clearly the relationship of the heron-like birds with the Steganopodes; of storklike birds with the American vultures; the great difference between the latter and the other birds of prey; the connexion of the gulls and auks with the plovers, and that of the sand-grouse with the From Newton's FIG.
Next stands the order Gallinae with 4 " cohorts "; (I) Tetraonomorphae, comprising 2 families, the sand-grouse (Pterocles) and the grouse proper, among which the Central American Oreophasis finds itself; (2) Phasianomorphae, with 4 families, pheasants peacocks, turkeys, guinea fowls, partridges, quails, and hemipodes (Turnix); (3) Macronyches, the megapodes, with 2 families; (4) the Duodecimpennatae, the curassows and guans, also with 2 families; (5) the Struthioniformes, composed of the tinamous; and (6) the Subgrallatores with 2 families, one consisting of the curious South American genera Thinocorus and Attagis and the other of the sheathbill (Chionis).
Among game birds are three varieties of bustard, guinea fowl, partridges, sand grouse and wild geese.
Among game birds the bustard, guinea fowl, sand grouse (kata), blue rock, green pigeon, partridge, including a large chikor (akb) and a small species similar to the Punjab sisi; quail and several kinds of duck and snipe are met with.
The Tibetan sand-grouse is peculiar to the country, and the snow-partridge (Lerva nivicola) and the snow-cock (Tetraogallus tibetanus) are occasionally met with in the uplands, while the ordinary partridge (Perdix hodgsoni) is common in the ravines on the plateau.