APPENDIX A. 



ADDITIONAL EEMAKKS ON NOETH AMEEICAN BIEDS 



Additional materials having been received while the preceding report was passing through 

 the press, I am enabled to make some important corrections and additions in reference to the 

 number of species, as well as to their synonymy and localities. These are based chiefly on col- 

 lections received at quite a late period, made by Mr. J. Xantus de Vesey^ at Fort Tejon, Califor- 

 nia, Dr. W. W. Anderson, U, S. A., at Cantonment Burgwyn, N. M., and Mr. C. Drexler, at 

 Fort Bridger, Utah, A special list of Mr. Drexler's whole collection is added. Sheets of 

 the report, as printed, were sent to Mr. P. L. Sclater, of London ; and some valuable criticisms 

 received from him have also been embodied herein. 



Falco nigriceps, Cassin, p. 8. — An erroneous measurement of Dr. Cooper's specimen, 8501, 

 should read, — length, 17.25; extent, 39.50. 



Syrnium nebulosum. Gray, p. 56. — Fort Tejon, J. Xantus de Vesey. 



Nyctale acadica, Bon., p. 58. — Fort Tejon, J, Xantus de Vesey. 



PicDS HARRisn, Aud., p. 87. — A specimen from Fort Bridger has the middle wing coverts 

 unusually spotted with white. It belongs to the variety with pure white belly. The same 

 may also be said of a specimen of P. gairdneri. A skin of P. harrisii, from Cantonment 

 Burgwyn, has a reddish yellow patch in the crown. 



Sphtrapicus nuchalis, Baird, p. 103.— In the article on S. varius, p. 103, reference is made 

 to a supposed curious variety of the latter species with black curved band bordering the red of 

 crown posteriorly, and succeeded by a nuchal crescent of red instead of soiled brownish white. A 

 large number of specimens brought in by Mr. Drexler (about twenty) show further differences, 

 in the fact that the female has a red throat like the male, instead of white, the extreme angle 

 of the chin only being more or less white, which, with other peculiarities, entitle it to the ranjc 

 of a distinct species. The characters are as follows : 



Similar to 8. varius. Under parts whitish^ only faintly tinged with yellow. Black stripe from 

 side of lower jaw not extending back to that of breast, but cut off by the extension of the red 

 of throat to the lateral white stripe ; outer webs of secondaries almost entirely black. Tail 

 feathers almost entirely black except the inner webs of the innermost, which are white banded 

 with black, the others occasionally edged slightly with yellowish ; red of crown margined 

 behind by black, this succeeded by a half collar or crescent of red curving forwards to the eye 

 and becoming white on the sides of head. Female with the throat red, the chin more or less 

 white. 



Other differences might be indicated, but what I have mentioned is quite sufficient to establish 

 a distinction of species. The specimens from Laramie Peak, collected by Lieutenant Warren, 

 those of Dr. Henry, from Fort Thorn, and probably all from the Rocky mountains, belong to 



Oct. 18, 1838. 



116 b 



