Remsen, J.V. 1975 Piping Plover Charadrius melodus May 10 Jumbo Res., Logan Co., Colo.: 1 at State Wildlife Area s. of reservoir. Seen only briefly (10 sec.) but at very close range (40'). Very much like Semipalmated Plover except back and head coloration very pale like a Snowy Plover and no dark area behind the eye; one dark bar through crown connecting eyes; in flight as it flew away from us the single dark spot on the tail and white rump (both Semipalmated and in flight snowy have dark rump) were seen very clearly; call note a double "poip-poip" unlike Semipalmated's "chu-peep"; black rings (complete) on breast and pale legs eliminates Snowy, as well as thick stumpy bill with pale base, dark tip. Very few good records for Colorado Sep. 7 Jumbo Res., Logan Co., Colo: 1 on n. shore of Jumbo Res. Studied for 15 min. in perfect light on wide mud flat feeding with Semipalmated Plovers. Same size and shape as Semipalmateds but much, much pale - stood out with the naked eye from a distance. Bill short and stubby, (perhaps more so than Semipalmated) and dark; complete breast band but very faint; legs yellow. In flight, rump and upper tail white, lower tail with black spot.