NO. 1939. REVL^TON OF ARDEA HERODIAS—OnERHOLSEB. 55l 



face, including tail, tertials, innermost secondaries, and superior sec- 

 ondary coverts, slate-gray, the long, narrow, plumaceous feathers of • 

 back and scapulars paler and glaucous, the median coverts and outer 

 webs of greater coverts paler gray, the rectrices more slaty on ter- 

 minal portions; primaries, secondaries (except the innermost), pri- 

 mary coverts, and alula, blackish slate, slate black or dull black; 

 jugulum deep smoke gray, medially white, streaked broadly with 

 black and dull brownish slate, narrowly with cinnamon rufous and 

 pale cinnamon, the long, narrow, pointed, plume-like feathers termi- 

 nally pale drab gray, smoke gray, or whitish; a tuft of black, partly 

 white-striped feathers on each side of the breast ; back of this a small 

 patch of cinnamon rufous; sides and flanks slate gray; breast and 

 abdomen black, broadly streaked with white; under tail-coverts 

 white; tliighs and edge of wing deep cinnamon njfous, the latter in 

 part more deeply colored, verging to chestnut; under wing-coverts 

 slate color; axillars slate gray. 



Measurements. — Male:^ Wing, 488-511 (average, 497.0) mm.; tail, 

 179-195 (186.5); exposed culmen, 139-148 (144.6); height of bill at 

 base, 27.6-32 (29.5); tarsus, 180-198 (188.3); middle toe, 109-119 

 (112.4). 



Female:^ Wing, 460-492 (473.0); tail, 171-180.5 (175.5); exposed 

 culmen, 135-140 (137.7); height of bill at base, 25-29 (26.5) ; tarsus, 

 165-180 (170.3); middle toe, 94-109.6 (100.5). 



Type-locality.— liaird, northern California. 



Geogra'phical distrihution. — Pacific coast region of the United States, 

 mainly in the Upper Austral and Transition zones: north to western 

 Oregon; south to San Diego, southwestern California; east to San 

 Gabriel, western California, and Baird, central northern California. 

 Apparently a permanent resident throughout most if not all of its 

 I'ange, but wanders in winter west to the Farallon Islands, California, 

 and east to St. John, Glenn County, California. 



This new race dift'ers much more from all the subspecies of Ardea 

 lierodias that are geographically near than it does from the far-distant 

 typical form of the species. It may readily be distinguished from 

 Ardea lierodias treganzai by larger size and darker neck and upper 

 parts, from Ardea lierodias sanctilucae by much darker neck and 

 mantle and average longer wing. There does not seem to be any 

 constant dift'erence in color between Ardea lierodias liyperonca and 

 Ardea lierodias lierodias, but the substantial difference in size serves 

 well enough to separate them. 



Two specimens from San Diego, California, taken respectively 

 December 16, 1892 (No. 37088, Acad. Nat. Sci. Phila.), and April 24, 

 1862 (No. 4494, Mus. Vert. Zool.^), the latter apparentl3''in the breeding 



' Six specimens, from California. 



- Three specimens, from California and Oregon. 



s Not seen by the writer, but eompared by Mr. Joseph Orinnell. 



