Thus he separates the birds of prey into three great groups - (I) the ordinary Diurnal forms, including the Falconidae and Vulturidae of the systematist of his time; but distinguishing the American Vultures from those of the Old World; (2) Gypogeranus, the secretary-bird; and (3) the owls (q.v.).
The first of them, Accipitres, comprehending all the birds-of-prey, were separated into 4 " cohorts " in his original work, but these were reduced in his appendix to two - Nyctharpages or owls with 4 families divided into 2 series, and Hemeroharpages containing all the rest, and comprising io families (the last of which is the seriema, Dicholophus) divided into 2 groups as Rapaces and Saprophagi - the latter including the vultures.
In the northern mountains the ptarmigan is common, and like other creatures assumes a white winter dress; ducks and other water-fowl frequent the lakes; the golden eagle, certain buzzards and owls are found, and among smaller birds the Lappland bunting (Plectrophanes laponicus) may be mentioned.
I know owls don't sing, but I didn't like the song birds as well as this guy.
Birds of prey comprise several species of hawks and owls, and a few eagles.