78 PROCEEDINGS OP THE ACADEMY OF 



abundant. Rocky precipitous localities, canons, etc. This species has a 

 laughing whistle, unsurpassed tor oddity as well as for power. 



122. Thryothorus Bewickii (Aud.) Bonap. 



Troglodytes Bewickii, Audubon, Orn. Biog. i. 1831, pi. xviii. p. 96. 

 Thryothorus Beicickii, Bonap. List. 1838. Baird, B. N. A. 1858, p. 363. 

 Troglodytes leucogaster, Gould, P. Z. S. 1836, 89. (Tamaulipas.) 

 Thryothorus (Thryomanex) Bewickii, var. leucogaster, Baird, Rev. Amer. 

 Birds, 1864, pp. 122, 126, 127. 

 The most, abundant and characteristic Wren of Whipple, resident all the 

 year, and found in all situation's. 



The numerous specimens collected are of the var. leucogaster, as defined by 

 Baird, 1. c. supra. Variety spilurus, Vigors, appears to be a coast tj - pe. 



I have never seen the Thryothorus Berlandieri from Arizona ; but think it 

 probably will be hereafter detected, particularly near the New Mexican boun- 

 dary of the Territory, in the southern portions of its extent. The types of the 

 species are described from New Leon, Mexico. 



123. Troglodytes Parkmanni Audubon. 



" Troglodytes americanus Aud. " ! Heer., P. R. R. Survey, x. pt. iv. p. 41. 

 Troglodytes tedon, Idem, op et loc. cit. 



Very abundant ; summer resident. Arrives April 20 ; remains until Oc- 

 tober. 



Dr. Cooper informs me that so far as he knows this species never recurves 

 the tail over the back, a habit so characteristic of eedon. I have myself 

 noticed hundreds of individuals, and do not now recall an instance where 

 this peculiar attitude was assumed. Parkmanni has always seemed to me to 

 be a shyer, less familiar, more retiring and wood-loving species than its east- 

 ern representative; and though the measure of the song is the same, yet in 

 tone and volume I have often thought it sounded a little different from the 

 familiar trill of sedon. If some of these points of habit could be substantiated, 

 they would go far towards eking out the lather slim diagnosis upon which 

 the species now grounds its claim to recognition. 



Dr. Heermann very wrongly says that " T. americanus Aud." is " abundant 

 in the wooded portions of the country. ,: We might suppose he had mistaken 

 Parkmanni for this species, did he not also give T. fedon&s being abundant 

 too. 



Troglodytes (Anorthura) hyemalis Vieill., a bird of the eastern province, has 

 been recorded from Fort Tejon, Cala., (Baird B. N. A. p. 923,) and may pro- 

 bably be found in Arizona. 



124. Cistothokus palustris (Wils.) Baird. 



Cistothorus (Telmatodytes) palustris var. paludicola, Baird, Rev. Amer. 

 Birds, 1864, p. 148. 

 Very abundant in a small swampy tract near Fort Whipple ; and elsewhere 

 observed in similar situations. Summer resident. Arriving early in April, 

 and remaining until November. " Winters in the Colorado Valley, as high 

 as Fort Mojave." (Cooper.) My specimens are referrible to Baird's var. 

 paludicola. 



CERTHIIDjE. 



125. Sitta aculeata Cassin. 



Very common, permanent resident. Chiefly pinicoline about Fort Whipple. 

 I have never seen a specimen out of an immense series which was not readily 

 distinguishable from carolinensis. 



126. Sitta pygm>*;a Vigors. 



The most abundant and typical Nuthatch of all the pine regions of Ari- 

 zona and New Mexico. Resident. Young appear in June. Semi-gregarious 

 at all seasons. Seems to be exclusively pinicoline. Iris black. Bill bluish 



[March, 



