BIRDS OF COLORADO. 65 



233. Macrorhampus scolopaceus. I,ong-billed Dowitcher. 

 Migratory; not uncommon. Probably occurs throughout 

 the lower regions of the State, though all the records are con- 

 fined to the plains region east of the mountains. It is not un- 

 common there in migration, passing through about the middle of 

 April. Breeds far north, but a record of one taken by H. W. 

 Henshaw at Denver, July 24, 1873, would lead one to suspect 

 that it may yet be found breeding in the State. 



233. Micropalama himantopus. Stilt Sandpiper. 



Migratory; rare. Only found on the plains of eastern 

 Colorado where it is occasionally met in spring migration in 

 May and early June and less commonly in the fall. It has been 

 reported by Capt. P. M. Thorne, from Fort Lyon, where he 

 killed a female May 22, 1883, with the largest egg the size of 

 No. 6 shot (Atik, IV. 1887, 264), by Prof. Wm. Osburn, from 

 l/oveland, by F. Bond, from Cheyenne, and by H. G. Smith, 

 from near Denver. Breeds north of the United States. 



239. Tringa maculata. Pectoral Sandpiper. 



Migratory; common. Occurs throughout the State in 

 migration, both on the plains and even up to 13,000 feet in the 

 mountains (Morrison O. & O. XIII. 1888, 107), though of 

 course less common at the higher altitudes. Breeds in the Arc- 

 tic regions. , 



240. Tringa fuscicollis. White-rumped Sandpiper. 



Migratory ; not uncommon. A bird of the plains finding 

 its western limit at the base of the Rockies. It has been 

 reported by Thorne, Breninger and Osburn. Breeds far north. 



241. Tringa bairdii. Baird's Sandpiper. 



Migratory ; abundant. In fall migration this is one of the 

 commonest of the Sandpipers, and is also common in spring. 

 Breeds far north but returns early, entering the State again in 

 the latter part of August. When moving northward it is a bird 

 of the plains and the parks below 7,000 feet, but Trippe, Drew 

 and Morrison agree that after the breeding season is over in 

 August and September, it roams to the tops of the loftiest 

 peaks, 13,000 to 14,000 feet, feeding on grasshoppers. Passes 

 through during April and the first half of May. 



242. Tringa minutilla. Least Sandpiper. 



Migratory; common. Arrives the latter part of April and 

 is mostly gone by the middle of May. Is found principally 

 on the plains and below 7,000 feet in the mountains. 



