136 Recent Literature. 



characters of both ^in a most marked degree. I have therefore 

 nariicd the bird Hirundo horreori-lunif7-ons, this name suggesting 

 the nature of the hybrid in question. 



Description. — Bill similar to that of the Barn Swallow (Hirundo erythro- 

 gastra var. horreorum), but rather stouter. Nostrils opening laterally, par- 

 tially overhung by membrane, though not so much so as in the above-named 

 species. Tarsi about as long as middle toe without the claw, feathered at 

 the .ipper end on the inside. Toes cleft as in horreorum; the lateral claws 

 reach to base of middle. Tail forked for about one fourth of its length, 

 with white spots on the rectrices, but not so strongly marked as in horreor 

 rum, and the outer feathers are not lengthened and linear as in that spe- 

 cies. The wings, when folded, reach nearly to end of tail. Head and 

 back steel-blue with a chestnut-brown frontlet, as in horreorum, the chest- 

 nut extending farther back on the head than in that species. Eump 

 reddish-white, the color paler than in the Cliff Swallow (Petrochelidon 

 lunifrons). Wings similar to those of horreorum. Throat and breast 

 chestnut-brown, with a slight central black patch, as in lunifrons, and a 

 pe toral band as in horreorum. Sides under the wings and under parts 

 generally of a shade varying between that of horreorum and lunifrons. 

 Crissum reddish-white, the longer feathers with a slight smoky tinge. 

 Lores dusky ; rictus slightly bristled. Cheeks steel-blue, as in horre- 

 orum, but with a slight tendency to chestnut, as in lunifrons. Dimen- 

 sions (from the dried skm) : length, 5.88 ; wing, 4.63 ; tail, 2.69. 



^tttxit iliteratttrr. 



Ornithology of the Wheeler Expeditions of 1876 and 1877. 

 I. Report for 1876.* — Notice in the Bulletin of this important paper of 

 Mr. Henshaw's upon the ornithology of California was quite accidentally 

 omitted at the time of its appearance in 1877. The report embodies the 

 results of Mr. Henshaw's investigations into the ornithology of California 

 during the summer and autumn of 1875. Field-work began on June 1, 

 and was prosecuted unremittingly up to October 15. The localities most 

 carefully examined were the islands of Santa Cruz, in the Santa Barbara 



* Annual Report upon the Geographical Surveys West of the One-Hundredth 

 Meridian, etc. By George M. Wheeler, First Lieutenant of Engineers, U. S. A. 

 Beins Appendix JJ of the Annual Reports of the Chief of Engineers for 1876. 

 Wasliington, Government Printing-Office, 1876. Report on the Ornithology of 

 the T'ortions of California visited during the Field Season of 1875. By Mr. 

 H. W. Henshaw. pp. 224 - 278. 



