_Remarks._--The Short-eared Owl was taken at Tinian by Quoy and Gaimard (1824:680, 696) and in recent years has been recorded at Pagan. The committee which prepared the Hand-list of Japanese Birds (Hachisuka _et al._, 1942:202) writes that the bird taken at Pagan has a short wing (288) and indicates that it belongs to _A. f. ponapensis_. In the present work this bird is considered to be _A. f. flammeus_, a migrant from Asia; possibly, however, there is an unrecorded resident population of the Short-eared Owl in the northern Marianas, which may be closely related to _A. f. ponapensis_ of Ponapé. Owls may have at one time been resident in the southern Marianas. At Guam, for instance, owls are well known to the native peoples, and there is suitable habitat for the owl in the extensive grassland areas of the island. Perhaps an owl was resident at Guam and at other islands but has been eliminated partly by the overgrazing and burning of the grassy habitats preferred by the owl. =Asio flammeus ponapensis= Mayr Short-eared Owl _Asio flammeus ponapensis_ Mayr, Amer. Mus. Novit., no. 609, 1933, p. 1. (Type locality, Ponapé.) _Otus brachyotus_ Finsch (part), Journ. Mus. Godeffroy, 12, 1876, pp. 17, 18 (Ponapé); _idem_, Proc. Zool. Soc. London, 1877 (1878), p. 778 (Ponapé); _idem_, Journ. f. Ornith., 1880, p. 283 (Ponapé); _idem_, Mitth. Ornith. Ver. Wien, 1884, p. 47 (Ponapé); _idem_, Sammlung wissensch. Vorträge, 14 ser., 1900, p. 659 (Ponapé). _Asio brachyotus_ Finsch, Ibis, 1881, pp. 113, 114 (Ponapé). _Asio accipitrinus_ Ridgway, Proc. U. S. Nat. Mus., 4, 1882, p. 367 (Strong's Island = Kusaie); Wiglesworth (part), Abhandl. und Ber. Zool. Mus. Dresden, no. 6, 1890-1891 (1891), p. 3 (Ponapé); Oustalet (part), Nouv. Arch. Mus. Hist. Nat. Paris, (3), 7, 1895, p. 169 (Ponapi). _Asio flammeus sandwichensis_ Kuroda (part), in Momiyama, Birds Micronesia, 1922, p. 61 (Ponapé); Hand-list Japanese Birds (part), rev., 1932, p. 182 (Ponapé). _Asio flammeus ponapensis_ Kelso, Oölogist, 1938, p. 183 (Kusaie); Peters, Check-list Birds World, 4, 1940, p. 170 (Ponapé); Hand-list Japanese Birds (part), 3d ed., 1942, p. 202 (Ponapé); Mayr, Birds Southwest Pacific, 1945, p. 291 (Ponapé). _Geographic range._--Micronesia: Caroline Islands--Ponapé, Kusaie?