22 
THE CONDOR 
Vol. VII 
male was singing nearby, though not so vigorously as usual while in that neigh- 
borhood. Alter chirping quietly near the place, the female flitted away and I saw 
her no more. I concluded that nest-building was then in progress, and decided to 
leave the warblers for awhile. 
Two weeks later, while at the same place I had seen the female carrying her 
nest material, I engaged the attention of two warblers, a male and a female. Dur- 
ing the hour I spent searching the shrubbery near the place, the two birds mani- 
fested much uneasiness, though chirping in their quiet fashion. I am as certain 
that there was a nest in the neighoorhood as anyone can be without ocular 
demonstration, but I failed to find it. though I searched both among the dead 
leaves on the ground and every bit of bush within fifty yards of that place as a 
center. During all this period, from June 20 to nearly the end of July, the males 
were in song, and were only silenced by the parching heat of the sultry July after- 
noons. It seems perfectly safe to assume that this warbler nests in Montana in the 
Flathead region, and further observation will verify the assumption. 
Lezvistown, Montana. 
Summer Birds of the Papago Indian Reservation and of the Santa Rita 
Mountains, Arizona 
BY HARRY S. SWARTH 
S OUTH of Tucson, Arizona, along the banks of the Santa Cruz River, lies a 
region offering the greatest inducements to the ornithologist. The river, 
running underground for most of its course, rises to the surface at this point, 
and the bottom lands on either side are covered, miles in extent, with a thick 
growth ot giant mesquite trees, literally giants, for a person accustomed to the 
scrubby bush that grows everywhere in the desert regions of the southwest, can 
hardly believe that these fine trees, many of them sixty feet high and over, really 
belong to the same species. This magnificent grove is included in the Papago 
Indian reservation, which is the only reason for the trees surviving as long as they 
have, since elsewhere every mesquite large enough to be used as firewood has been 
ruthlessly cut down, to grow up again as a straggly bush. 
Twice, at about the same season of the year, it has been my good fortune to 
spend a short time studying the birds of this region. The first time was in 1902, 
when Mr. O. W. Howard and I spent a week, from May 17 to 23, in the mesquites; 
while my second visit to the place was in 1903, when Mr. F. Stephens and I ex- 
plored it pretty thoroughly during the first two weeks in June. 
Leaving Tucson on the afternoon of June 3, we had ourselves and outfit 
driven to a spot about at the edge of the big mesquite forest, some ten miles from 
town, and less than a mile from the old San Xavier Mission. But little could be 
done that day beside getting some order in camp, and the first thing the next 
morning we went to call on Mr. Berger, the Indian agent, to whom we explained 
our aims and objects. He at once gave us permission to camp as long as we de- 
sired, and to make ourselves at home in every way; with the added request, how- 
ever, that we refrain from shooting around the fields where the Indians were get- 
ting in hay. It seemed that some sportsmen (?) from town had on various occa- 
sions, in their reckless shooting, peppered the Indians with shot, a procedure to 
which Lo most unreasonably objected. 
