Species and Varieties.
a. Scotiaptex, Swains.
1. S. cinereum. Iris yellow; bill yellow. Dusky grayish-brown and grayish-white, the former prevailing above, the latter predominating beneath. The upper surface with mottlings of a transverse tendency; the lower surface with the markings in the form of ragged longitudinal stripes, which are transformed into transverse bars on the flanks, etc. Face grayish-white, with concentric rings of dusky. Wing, 16.00–18.00; tail, 11.00–12.50.
Dark markings predominating. Hab. Northern portions of the Nearctic Realm … var. cinereum.
Light markings predominating. Hab. Northern portions of the Palæarctic Realm … var. lapponicum.
b. Syrnium, Sav.
Common Characters. Liver-brown or umber, variously spotted and barred with whitish or ochraceous. Bill yellow; iris brownish-black.
2. S. nebulosum. Lower parts striped longitudinally. Head and neck with transverse bars.
Colors reddish-umber and ochraceous-white. Face with obscure concentric rings of darker. Wing, 13.00–14.00; tail, 9.00–10.00. Hab. Eastern region of United States … var. nebulosum.