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160 THE CONDOR VoL. X Plateau Valley at 6500 feet. The two species occur in about equal abundance wherever found. tte10dr0maa s0litariua cinnam0meus. Solitary Sandpiper. The only informa- tion at hand regarding this species is from Prof. Cooke who says: "Several seen June 22, 1895, by J. A. Loring on the Grand River near Grand Junction." They probably occur regularly in migration. [Syruphernia semipalmata inornata. Western Willet. Undoubtedly a regular migrant and probably a few summer within the boundaries of the County.] Bartramia longicauda. Bartramian Sandpiper. Accidental. A lone bird of this species was seen by the writer on a small dry sage-brush flat at the head of Plateau Valley on the slope of the Grand Mesa at about 6800 feet. The bird which was quite tame, was flushed repeatedly and there can be no doubt as to the identity. The surrounding altitude and locality make this the strangest record the writer has ever encountered. Actitis macularia. Spotted Sandpiper. Summer residentl common. This sandpiper, which is the most common wader with the possible exception of the Killdeer, is found on all the reservoirs and along all the streams thruout the spring, summer and fall. It is apparently as common at 10,000 feet as at 5000 during the breeding season and is much more common during migration thruout the County. 'Mr. Sullivan gives the extremes of migration dates as March 18 and October 7. Numeniua 10ngir0atria. Long-billed Curlew. Mr. Floyd Sinalley reports kill- ing one of these birds on a small reservoir at the head of Plateau Valley at an alti- tude of about 6500, during the spring of 1905. This is the only information I have regarding the occurrence of this bird in the County. It is probably a regular migrant,' tho never occurring in any abundance. 0xyechus v0ciferus. Killdeer. Summer resident, abundant. The common- est wader found in the County. Arrives about April 1, or possibly a little earlier in the lower parts of the County, breeds early in June and stays until late in October. Nests commonly up to at least 6500. My earliest arrival date is March 20, 1902. [Podasocys montanus. Mountain Plover. Cooke mentions this species as occurring in the mountain parks during the snmmer, and Carter found it nesting in Middle Park. Probably occurs rarely in Mesa County in the summer and more commonly during migration.] Colinus virginianus. Bob-white. The only information I have relative to the occurrence of this bird I quote from Cooke's Birds of Colorado, Second Appendix, (March, 1898): "Introduced about 1891 near Grand Junction and still occurs, but not in anywhere near the numbers of the California Partridge." L0ph0rtyx calff0rnicus. California.Partridge. Resident. Abundant locally. Speaking of this species Miss Eggleston says, "A few years ago these birds were introduced near Grand Junction and have multiplied rapidly. They make their nests under the piles of pruned branches from the orchards and bring out large broods. One hen has been seen with twenty-three chicks, of two distinct broods. They are very tame, sitting on the fence posts or trees by the roadside and calling noisily to one another. They feed early in the morning and large numbers of them can be driven from the gardens." Mr. Sullivan says of them: "Plentiful; so plentiful as to become a nuisance; farmers are complaining. They do not fly in flocks like the Bob-white, but will scatter thru the brush in all directions as soon as flushed. It is seldom that more than two or three fly away together. They seem to be at home in the trees, too." They are common at least as far up the Grand River as DeBeque.