PErCEDEOMFS. 143 



Dendrmca olivacea, Scl. P.Z. S. 1858, p. 398*; 1859, p. 363'; Baird, Rev. Am. B. i. p. 305 ^ 



Salv. Ibis, 1866, p. 191'; Sumiclirast, Mem. Bost. Soc. N. H. i. p. 546'. 

 Peucedramus oUvaceus, Coues, B. Col. Vail. i. p. 333 ^ 

 Sylvicola tceniata, Du Bus, Bull. Ac. Brux. xiv. pt. 3. p. 104 ". 



.Supra cinereus, eapite toto cum coUo fulvo-aurantiacis, area ooulorum nigra ; alis nigris albo bifasoiatis et 

 secundariis interioribus flavo extus limbatis, remigibus reliquis albo marginatis, speculo alari albo ; Cauda 

 nigra cinereo marginata, rectricibus duabus extimis pro majore parte albis; subtus gutture toto Mvo- 

 aurantiaco; abdomine cinerascente medialiter albicaute; pedibus obscure oorylinis. Long, tota 5-2, 

 alae 2-9, caudsB 2-1, rostri a riotu 0-7, tarsi 0-75. (Deser. maris ex Voloan de Fuego, Guatemala. Mus. 

 nostr.) 

 $ mari similis, colore aurantiaco sordide flavo, pileo et cervice media olivaceis, area ooulorum fasca, et abdo- 

 mine albicantiore distinguenda. (Descr. feminse ex Volean de Puego, Guatemala. Mus. nostr.) 



Hab. North America, Arizona 9.— Mexico «> {8alle% near the city {le Strange), alpine 

 region of Vera Cruz (Sumichrast^), Popocatepetl (Verreauw^ Jalapa (de Oca% 

 La Parada (^0Mcaj-(Z4) ; Guatemala, Volean de Fuego^, Volean de Agua, Chilasco 

 {0. S. & F. J). G.). 



Though, described as a bird of Texas by Giraud in 1841, it was many years before 

 P. oUvaceus obtained a satisfactory footing within the limits of the United States. 

 Its presence, however, in Arizona was fully established by Mr. W. H. Henshaw in 

 1874 ; and the bird now takes its place in the North- American fauna without further 

 question. Soon after its first discovery it was found in Mexico and described under the 

 name of Sylvicola tceniata by the late Viscount Du Bus ^o, a name shown by Mr. 

 Sclater to belong to the same bird as Giraud's Sylvia olivacea ^. The bird is now well 

 known in Mexico, and is included in the lists of nearly every collector who has worked 

 in the southern parts of that country. It seems, however, to be strictly confined in its 

 range to the high mountains of the interior, where it is a characteristic species between 

 5000 and 10,000 feet ^. In Guatemala it is also a denizen of the highest districts, 

 being common in the upper pine-belts of the volcanos above the elevation of 10,000 

 feet. We also met with it in the pine-tracts of Chilasco, in Vera Paz, at about 6000 

 feet above the sea. 



Mr. Henshaw describes the habits of this bird as resembling those of Bendrceca 

 jpinus, the "Pine-Creeper," as it creeps actively over the large limbs of the pine-trees, 

 after the manner of that species. In the places where we found the bird the pine 

 trees are of no great size, and we did not notice any thing peculiar in the method in 

 which it searched for its food. Besides frequenting the pines, we also saw it in the 

 scanty bushes found scattered throughout these high districts. 



Nothing is as yet known of its nesting-habits, nor yet of its migrations. Our own 

 observations of it extend only to the winter months ; but we are strongly of opinion 

 that it remains in its upland home throughout the year. 



