Vol i9of VI ] Felger, Colorado Water Birds. 289 



resident. (Latter part of April-Sept. 30.) In migration, very common; 

 in summer, not uncommon. This is another perplexing little fellow, but 

 I am emboldened to lable it "or summer resident" with, perhaps a little 

 more reason than in the case of Baird's Sandpiper, for in this case my notes 

 indicate his presence during the entire summer and in June only in singles, 

 or twos, or very small groups and not in flocks the size of those of bairdi. 



[243a. Pelidna alpina sakhalina. Red-backed Sandpiper. — Migrant; 

 rare in adjacent localities. (April 29-June 1.) Cooke reports three speci- 

 mens for Colorado, all from territory adjacent to this area; viz., one in the 

 Maxwell collection at Boulder and two taken by W. G. Smith at Loveland, 

 April 29 and May 9. (Birds of Colo., p. 66.)] 



246. Ereunetes pusillus. Semipalmated Sandpiper. — Migrant; rather 

 rare. (Last of April-May 24.) Cooke speaks of this species as "not 

 uncommon .... mostly on the plains and below 7000 feet." (Birds of 

 Colo., p. 66.) In this particular area it is one of the rarer of the sand- 

 pipers. 



[247. Ereunetes mauri. Western Sandpiper. — Migrant; rare in 

 adjoining localities. (May 9-May 12; July 4-?.) Cooke gives but four 

 records, three of which are from territory adjoining this area: viz., one 

 taken at Loveland by Prof. Wm. Osburn on July 4, 1899, and another on 

 May 12, 1890; one taken at Loveland by W. G. Smith on May 9, 1890. 

 (Birds of Colo., p. 66.)] 



248. Calidris leucophsea. Sanderling. — Migrant; rare in this and 

 surrounding territory, being found only occasionally in spring and fall 

 migration. Tins is a typical bird of the sea-shores, where it is abundant 

 in migrations. During these periods it is, however, nearly cosmopolitan, 

 being found on the larger bodies of water in the whole interior, and I 

 believe that a more systematic search on our larger lakes will reveal them 

 in greater numbers here. 



249. Limosa fedoa. Marbled Godwit. — Migrant; not common. 

 (May 3-?.) While this bird is never common, I expect to see a few along 

 the Barr Lake Chain every season, especially in the spring. I have no 

 breeding records for this area, but it will not be surprising if it is found 

 to breed here. 



254. Totanus melanoleucus. Greater Yellow-legs. — Migrant or 

 summer resident. (March 29-Oct. 29.) In migration, common, but not 

 nearly so common as the Lesser Yellow-legs, the flocks of the former 

 usually consisting of from five to fifty or sixty birds, while those of the 

 latter consist of as high as several hundred birds. I have noted this species 

 during every month from March to October, and, though I have no records 

 of nests within this area, I believe it will yet be found breeding here. 



255. Totanus flavipes. Yellow-legs. — Migrant or summer resident. 

 (April-October.) This species is found at about the same time and in 

 about the same localities as the previous species and I believe that this 

 bird will also some day be found breeding here. 



256. Helodramus solitarius. Solitary Sandpiper. — Migrant; rather 

 uncommon. (?-May 9; Aug. 20-Sept. 25.) Not known to breed. 



