The Pacific Nighthawk 
Taken at Big Bear Lake Photo by W. M. Pierce 
THE OFFERING 
PACIFIC NIGHTHAWK DECOYING FROM NEST 
No. 208 
Pacific Nighthawk 
A. O. U. No. 42od. Chordeiles minor hesperis Grinnell. 
Synonym.— Bull-bat. 
Description.- —Adult male: Mottled, black, gray, and ochraceous, and with 
white in patches; above, black predominating, especially on crown and back, mottling 
falling into indistinct bars on upper tail-coverts and tail; a touch of white on edge of 
wing in front of alula; the wing-quills dusky, the first primary usually exceeding or at 
least equal to the second; a large white transverse patch just within the basal half 
on the first five or six primaries (merely indicated on the outer web of the first) and 
opposite the tip of the eighth; a large inverted V-shaped throat-patch white; the chest, 
in sharp contrast, chiefly black with a few tawny tips; remaining underparts distinctly 
and finely barred, dusky and whitish with some faint ochraceous; the crissum pure 
white, usually barred at greater intervals than on breast; tail notched for half an inch 
1059 
