Anas crecca Mayr, Birds Southwest Pacific, 1945, p. 302 (Micronesia).
Geographic range.—Breeds in Iceland, northern Europe, Asia, and Aleutians. Winters south to northern Africa, Asia and Philippines. In Micronesia: Mariana Islands—Pagan.
Remarks.—The European Teal has been recorded by the Japanese at Pagan in the northern Marianas. It appears to be an uncommon winter visitor to Micronesia.
Anas crecca carolinensis Gmelin
Green-winged Teal
Anas carolinensis Gmelin, Syst. Nat., 1, pt. 2, 1789, p. 533. (Type locality, Carolina to Hudson Bay.)
Anas carolinensis Reichenow, Ornith. Monatsber., 1901, p. 17 (Jaluit); Schnee, Ornith. Monatsber., 1901, p. 131 (Marshalls); idem, Zool. Jahrbücher, 20, 1904, p. 390 (Marschall Inseln); Phillips, Nat. Hist. Ducks, 2, 1923, p. 235 (Marshall Islands).
Querquedula crecca carolinensis Hand-list Japanese Birds, rev., 1932, p. 185 (Marshall Islands).
Anas crecca carolinensis Hand-list Japanese Birds, 3d ed., 1942, p. 206 (Marshall Islands).