BIRD LIFE IN THE URUBAMBA VALLEY OF PERU. 81 



specimens of rufula, in fact are intermediate in color between the 

 two phases. They are more uniform in color than a series of 8 

 specimens from Ecuador, which in turn show less variation than our 

 series of 11 specimens from Colombia. The latter includes examples 

 from each of the three Andean ranges in that countr}^, and it is 

 possible that the variations which they exhibit may in part be 

 racial, though before learning of the constancy shown by these Peru- 

 vian birds I had considered the variations shown in Colombian 

 specimens to be wholly individual. 



Above Machu Picchu (12,000 feet), 4; Occobamba VaUey (9,100 

 feet), 4. 



Family DENDROCOLAPTIDAE. 



WOODHEWERS, OVENBIRDS. 



(2230) GEOSITTA TENUIROSTRIS (d'Orbigny and Lafresnaye). 



Certhilauda tenuirostris d'ORBioNY and Lafresnaye, Syn. Av,, vol. 1, 1837, p. 72 



(Cochabamba, Bolivia). 

 Geositta tenuirostris Sclater and Salvin, Proc. Zool. Soc, 1869, p. 153 (Tinta; 



Tungasuca). 



I have no topotypical specimens, but the specimens listed below, 

 together with 8 from Tirapata and 2 from Puno, agree with 3 from 

 northwestern Argentina (Tilcara and above Tafi del Valle) . 



La Raya, 3 ; Cuzco, 2 ; Occombamba Pass, 2 ; Huaracondo Canyon, 1 . 



(2252) UPUCERTHIA PALLIDA Taczanowskl. 



Upmerthia pallida Taczanowski, Proc. Zool. Soc, 1883, p. 71 (Junin, Peru). 



A common species at Tirapata and La Raya. The only topo- 

 typical specimen which I have seen is in much worn plumage. It is 

 darker above, and the rufous of the wings and tail is less bright than 

 in the following specimens: 



Ttica-Ttica, 1; La Raya, ] male; 1 female; 1 ?. 



(2268) CINCLODES FUSCUS RIVULARIS (Cabanls). 



Cillurus riviilarls Cabanis, Journ. fiir Ornith., 1873, p. 319 (Maraynioc, Peru). 

 Cindodes fuscus Scla.ter and Salvin, Proc. Zool. Soc, 1869, p. 153 (Tungasuca). 



Our specimens agree with one from Lake Junin which may be 

 considered topotypical. 



idma Pampa (11,200 feot\ 1 (Oct. 9, "breeding"); above Machu 

 Picchu (12,000-14,000 feet), 2; Ollantaytambo, 1; Huaracondo 

 Canyon, 2; Ttica-Ttica, 5; Cuzco, 1; La Raya, 6. 



(2273) CINCLODES ATACAMENSIS (Phitippi), 



Upucerthia atacamensis Philippi, Arch, fur Naturg., 1857, p. 263 (San Pedro de 

 Atacama, Chile). 



I have no topotypical material. 



La Raya, 4; Pisac, 1; Calca, 1; Chospiyoc, 1. 



2787—21 6 



