. ) v.n ^'4 



TUKDU8. 



IT 



of North America, I have 8i'«>n several other specimenH of the larj?e 

 race of Turdut pnllaxii. The back is rather more olivaceous llian 

 in pallaHii, the rump pulcr and h^ss rufous, and the colors jfi'iiorally 

 much as in nanux. In the largest specimen (10,88fi, from Fort 

 IJridgcr) the wing is 4. 18 inclicn ; tail, S.fiO ; bill, from tip to nostril, 

 .45; tarauu, 1.2(5. Other specinienB from Mexico and Ouat'niala 

 are a little pmaller, but all exceed pallaHii in size. 



This species or race np'Kars to belong to the high table lands of 



^rth America; the skin coll«>cted by Mr. Drexler, at Fort liridgcr, 



•.hat from Cantonment IJurgwyn (both localities in the Rocky 



Aiouii ains), being however the only specimens recorded from the 



li.iited States. On the other hand, it seems to be rather common 



in Mexico and (juatemula. 



A specinien from Orizaba agrees with the others referred to in the 

 grayer plumage above, although not larger than many of the true 

 pallasii. It is probably the same variety that Dr. Selater refers to 

 as T. pallasii from Orizaba. 



^^'hether the present bird be specifically distinct from T. pnllasii 

 or not, there is no doubt of its being a decidedly marked race, of 

 larger size and grayer plumage above. While, as defined, the true 

 T. pallasii is confined to eastern North America, possibly not mi- 

 grating south of its limits, the 2\ aiiduboni belongs to the ct-ntral 

 North American plateau, ranging from Fort Bridger to Orizaba. 



As the name of T. silens is pre-occupied in the genus by A'ieillot, 



I have ventured to affix the name of T. auduboni to the present bird, 



basing the name upon the largest specimen from Fort Bridger 



(10,886). 



LiBi' OF Spbcihers. 



Iiocitlity 



Fort Brldtferf 

 Cantonment Bnr- 

 Mezico. lgyiyu,H.lL. 



0ii»ba. 



I 



When 

 CoUected. 



May 28, '58. 



Received from 



C. Drexler. 



Dr. W W. Ander- 



J. Gould. [son. 



Prof. Sainl<)bra§t. 



Collected liy 



10,886. Type. No. 11,734. 8; 11 28; 3.74. 



Turdus fiiscescens. 



Turdus mustelivus, Wilson, Am. Om. V, 1812, 98, pi. 43 (not of Cmrliit). 



Tardus fuscescens, Stephens, Shaw's Gen. Zool. Kirds, X, i, 1817, 182. 

 Cab. Jour. 18.').'), 470 (Cuba).— Baird, Birds N. Am. 1858, 214.— 

 ScLATER, P. Z. S. ?ri.')9, 32().— Ib. Catal. Am. Birds, 1861, 2, no. 10. 



Turdus silens, Vibill. Encyclop. M6th. II, 1823, 647 (based on T, muite- 

 linns, WiLs.). 

 2 June, 1864. 



