S. DEPARTMENT OF AGRICULTURE. 
are the rough-winged swallow, house finch, killdeer, horned lark, 
Arkansas kingbird, mourning dove, California quail. Bullock's 
oriole, black-headed grosbeak, cowbird, and yellow-headed blackbird. 
A bird population differing in relative numbers from that of the 
region just described is found in Davis County, lying to the north of 
Salt Lake City and extending from the Wasatch Mountains to the 
Lake. As the area is narrow (at Farmington only about 4 or 5 miles 
wide) , and is bordered on one side by the foothills and on the other 
by the barren flats of Great Salt Lake, a great variety of bird life 
may be found on a single farm. The English sparrow is not so 
plentiful, Brewer's blackbird being the most abundant species, but 
nearer the Lake the red-wings and yellow -heads vie with it for 
supremacy in numbers. California gulls sometimes occur in flocks 
of several hundred, especially where land is being cultivated. Mag- 
pies also are conspicuous and breed extensively in trees growing 
along creeks. The other species previously mentioned maintain 
about the same relative abundance, except that robins, Arkansas 
kingbirds, and other flycatchers are somewhat more numerous. 
In the valley of the Weber the number of species is more limited, 
but there is no dearth of individuals. Here, as well as along Chalk 
Creek, which flows into the Weber, irrigated fields border the river 
in a long narrow strip, 1 to 2 miles wide. Bird life has segregated 
itself in these fields, while large numbers of birds which build in the 
sagebrush of the surrounding hills secure the bulk of food for them- 
selves and their young in the lower, more fertile, tracts. 
A " bench " lying to the east of this section and at some distance 
from the river afforded similar conditions and proved a most excel- 
lent feeding area for a number of more or less desert species dwell- 
ing on the sides of adjacent hills. Brewer's blackbirds were the most 
abundant, while along the upper borders of these fields and on the 
" bench " Brewers, vesper, chipping, lark, and savannah sparrows 
appeared in great numbers. The green-tailed towhee. sage thrasher, 
and mountain bluebird also were present. On the lower fields robins 
were very numerous and bobolinks not uncommon, but no English 
sparrows were found. 
The section about Alpine and American Fork, in Utah County, 
presented, an avifauna very similar to that immediately south of 
Salt Lake City. 
BIRDS FEEDING ON THE WEEVIL. 
The following list includes all of the important bird enemies of 
the alfalfa weevil. Probably some spring migrants pick up a 
few while passing and some resident species, whose ordinary habits 
and food preferences would seem to preclude them from being 
enemies of the weevil, mav occasionallv feed on them. In the two 
