78 THE CONDOR Vol. XXIV 
however, only their form (fig. 29, nos. 1, 2, 3, and 4). The musical staff and 
notes are used as a matter of convenience and not with the intent of giving 
the songs in musical notation. If these song-forms prove to be the common 
ones of the Orange-crown, my hope is that they may assist in identifying the 
bird in the field, perhaps better, at least with average bird students, unae- 
quainted with music, than by representations of the songs at the hands of a 
skilled musician. 
Vermivora celata lutescens. Lutescent Warbler. On the same date that 
the Orange-crowns were found, and farther up the mountain, about a half a 
mile away, there was a single bird of this race singing from, and feeding in, 
thick chaparral near the ground. During the half hour he was under observa- 
tion he sang but one song which closely resembled the Orange-crown’s open- 
ing trill (see fig. 29, no. 5), but closing with two lower and slower notes sug- 
gesting swee-swee. 
This race is not known to nest as far east as the Rockies and hence was 
probably migrating; but an isolated singing male at this season suggests that 
the bird was on its nesting grounds. Some nesting dates elsewhere are: Ala- 
meda County, California. April 5; and Tacoma, Washington, May 3-28. 
The bird was strikingly colored. of very vellow plumage having an olive 
cast, and it appeared to be specifically distinct from celata. As I examined the 
bird at short ranee through a field glass it seemed to me that the two races 
were nesting here side by side without intereradation. 
Dendroica auduboni. Audubon Warbler. First apveared at 5600 feet. 
May 19. Ranges to 7100 feet. Here a mountain species, confining its sum- 
mer range to the medium-sized lodge-vole pines. 
Regulus calendula calendula. Ruby-crowned Kinglet. Occasional at ele- 
vations of 6400-6600 feet in large conifers along mountain streams. Thev were 
heard singing every day. but the song of the eastern bird was in no instance 
given in full, only its ovening notes. The terminal three to four times re- 
peated closing notes. often anglicised as ‘‘Tiook-a-me. ]look-a-me’’ ete.. In no 
case were suno. A. A. Saunders (Auk. vol. 36. 1919. pn. 525-528) has written 
at length on the veogravhical variation shown in this kinelet’s common sone. 
and T am glad to add mv testimony to the same effect. Saunders savs that 
the Rubv-erown sinos this abbreviated song wherever heard thronehont the 
western half of Montana. an area including the Little Belt Mountains. Bird 
ctndents who are afield in the Cordilleras, particularly easterners. shonld man 
the range of this most interesting ard nnusual kinelet. which annears to oeen- 
nv manv thoensand sanare miles of territory. and. while not known to differ 
subsnecifiecally from the eastern bird. vet nossesses a Jess eomnlex song. As 
the eastern Rubv-erown’s sone annears ta he an elahoration of that sine hv 
the Montana hirds. it mav he fairlv aroned on evolutionarv vronnds that thev 
(and the Pacifie Coast races too if their sone is indistinenishable from that 
of the eastern hirds) have descended from the Montana hirds. Those talking 
the onnesite view will see in the less eomnvlex sone of the Montana birds evi- 
dence of devolution rather than evolution. : 
Mvadestes townsendi. Towncend Solitaire. On Mav 15 mv attention was 
attracted to the Sclitaires hv hearine them sino as thev were migrating narth- 
erly over the mountains as sinole birds and in nairs. Thev commonly flew well 
above the mountains so that identification was made by their songs. A day 
