Abstract
As the result of comparison of 110 specimens of Accipiter nisus nisosimilis from Sakhalin, Japan, Korea, Manchuria and China, etc., the author recognizes the pale form pallens. Its valid specimen records are: Kamchatka (2 specs., Taczanowski), Hokkaido (_??_ ad. Dec. 1938-Kobayashi Coll.; _??_ ad. Nov. 1956-Mishima Coll.), 'Honshiu' _??_ juv. Autumn 1934-Yamashina (Momiyama) Coll.), Ibaraki Pref. (Type, _??_ ad. Jan. 1892-Yamashina Coll.) and Saitama Pref. (_??_ juv. Nov. 1941-Yamashina Coll.).
