136 
Recent Literature. 
characters of both [in a most marked degree. I have therefore 
named the bird Hirundo horreori-lunifrons, this name suggesting 
the nature of the hybrid in question. 
Description. — Bill similar to that of the Bam 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 upper 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 horreo- 
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. Bump 
reddish-white, the color paler than in the Cliff Swallow {Petrochelidon 
lumfrons). 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 skin) : length, 5.88 ; wing, 4.63 ; tail, 2.69. 
Ornithology of the Wheeler Expeditions of 1876 and 1877. 
I. Beport 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. 
Being Appendix JJ of the Annual Reports of the Chief of Engineers for 1876. 
Washington, Government Printing-Office, 1876. Report on the Ornithology of 
the Portions of California visited during the Field Season of 1875. By Mr. 
H. W. Henshaw. pp. 224- 278. 
