28 WOODPECKERS IX RELATION TO TREES. 
Black oottonwood (Popvlus trichocarpa). — Seattle, Wash. (A. A. 
and A. M. 373). 
Balm of Gilead {Popvlus candicans). — New Hampshire (A. A. 
and A. M. 377). 
Cottonwood (Popvlus acuminata). — Nebraska (A. M. 374). 
Tacmab \< [Popvlus balsamifera). — Essex County,N.Y. (A. A. and 
A. M. 376); Lewis County, X. V. (Hough). 
Carolina poplab (Populus deltoides) . — Texas (A.M. 372); Venice, 
La. 
Aspen I Populus (/randidentata). — Rawdon, Nova Scotia (A. M. 379). 
Aspen (Populus tremuloides). — Mackenzie Valley, Canada (E. A. 
Preble). 
Black willow (Salix nigra). — Belle Isle, La. 
Ward willow (Salix longipes). — St. Louis, Mo. (A. A. and A. M. 
368). 
California black willow (Salix Ixmgata). — California (A. A. 
and A. M. 366). 
Willow (Salix toumeyi). — Santa Catalina Mountains, Ariz. (A. A. 
and A. M. 365). 
Peach-leaved willow (Salix amygdaloides) . — New Mexico (A. A. 
and A. M. 367). 
Western black willow (Salix lasiandra). — California (A. A. and 
A. M. 362 and A. M. 364). 
Sandbar willow (Salix interior). — New Orleans, La. (A. M. 360). 
Silver-leaved willow (Salix sessilifolia) . — California (A. A. and 
A. M. 359). 
Willow (Salix missouriensis) . — Furness, Nebr. (A. M. 356). 
White willow (Salix lasiolepis). — California (A. A. and A. M. 
357). According to Brit ton, the name Salix bigelovii is a synonym of 
S. lasiolepis. Hence the following note is incorporated here (see 
PI. VI): 
Near Bluff Lake [OaL] a species of willow (Sali.v bigelovii) grows in good-sized 
clumps . . . and these willows seem to offer special attraction to the sapsuekers. 
Bui curiously enough the attentions of the birds are confined to a single clump in a 
Locality. . . . The incisions in the hark were generally rectangular, the long axis 
horizontal, and in vertical rows. These up-and-down rows o\ incisions often ran 
together, making vertical grooves, and sometimes also the rows were so close together 
a- im obliterate the interval, so that the hark was completely gone over a considerable 
-l»a«-e The trunk above this zone of attack was always partly or entirely dead. . . . 
This single willow clump . . . was rendered conspicuous by all its upper branches 
and -talk-, above 2 to I feet from the ground, heing dead, with the hark weathered 
off and the stems left bare and shining. (Grinnell, 1!K)8.) 
Willow (Salix hoolceriana) .- Oregon (A. A. and A. M. 353). 
Yew-leaved willow (Salix taxifolia).- Swisshekn Mountains, 
Ati/. (A. A. and A. M. 358 and A. M. 36] >. 
S vi i\ w ELLOW (Salix sitchi nsis).- California (A. A. and A. M. 352). 
