Remsen, J.V. 1975 Cape May Warbler Dendroica tigrina May 3 Two Buttes Dam, Prowers Co., Colo : 1 ♀ foraging in flowering cottonwood 20-40' above ground about 200 yds upstream from dam in riparian association. Watched for ~ 3 min from as close as 40 ft. and seen again for about 30 sec about 2 hrs. later in the morning. Overall appearance - a rather dull, pale, small, short-tailed warbler- the smallness and short-tailed ness were something I'd been noticed on the only other Cape May I'd ever seen and eliminated immediately larger species such as Blackpoll and Palm - seemed more green like a Northern Parula in shape. Face: distinctly outlined dark cheeky patch surrounded by dull yellowish tinge. Underparts: throat yellowish becoming whiter on breast and belly, but a very dusky or greenish white. Rows of spots forming streaks radiated from throat down into breast and especially along flanks. Upperparts - dull greenish-brown on crown, back, and wings without prominent streaks- perhaps some fine streaking; wingbars - 2 rather thin white wingbars. Tail - dark. Although we could not see the rump during the first observation, we did see this the second time and could see that it was a dull greenish yellow which contrasted with a darker back and tail. Probably the only other species with which this could have been confused was the ♀ Blackpoll which was eliminated because it doesn't have a contrasting rump, such a prominent cheek patch and breast streaks, has more prominent back streaks and wingbars and definitely doesn't have the short-tailed, small-sized appearance.