88 
559a. Spizella monticola ochracea Brewster—WESTERN TREE SPARROW. 
Whole state in winter; abundant westward where it is apparently 
the only form, eastward less common, giving place to and intergrad- 
ing with the preceding form. Dates as for monticola. Sioux and 
Cherry counties, Neligh, Lincoln, Omaha, ete. 
560. *Spizella socialis (Wilson) —CuHIPPING SPARROW. 
Eastern Nebraska; arriving the middle of April, breeding in June, 
departing in late September. Peru, Omaha, Dakota City, West Point, 
Neligh, Lincoln—commonas a migrant and generally as a summer resi- 
dent and breederalso. Betweenthe 98thtobeyondthe103d meridians 
(which is much over half the length of the state), there are few records 
for this bird until in Sioux county where it is abundant. This, to- 
gether with the fact that the western form (560a. S. s. arizonae Coues) 
is the common one in Colorado and Wyoming even within a compara- 
tively few miles of the Nebraska line (Cheyenne, Wyoming), makes 
it quite probable that the birds from that region are the western 
subspecies. Unfortunately, there are at present no specimens 
to decide the question. 
561. *Spizella pallida (Swainson)—CLAY-cOLORED SPARROW. 
An abundant migrant over entire state, and, according to Aughey, 
an occasional breeder in the northern part. Arrives first week in 
May and lingers through that month, appearing again in early Sep- 
tember and remaining through October. 
562. *Spizella breweri Cassin—BreEweR SPARROW. 
Sioux county; a common summer resident and breeder locally. 
M. A. Carriker, Jr., found it breeding commonly along the north side 
of Indian creek in the summer of 1901. (See Proce. N. O. U. III, 
pp. 70 and 85.) J. M. Bates reports taking one specimen in Cherry 
county, May 16, 1891, which was sent to Washington for identifica- 
tion. 
563. *Spizella pusilla (Wilson) —FirELp Sparrow, and 
563a. *Spizella pusilla arenacea Chadbourne—WesTERN FIELD SPARROW. 
The exact status of these two races in Nebraska is still somewhat 
uncertain, but during migrations arenacea occurs over almost the en- 
tire state. It breeds abundantly along its northern border (Valen- 
tine, Long Pine, Springview, Carns, Niobrara City) and less commonly 
southward (Broken Bow), being present as a migrant only at Neligh, 
West Point, and Lincoln. Arrives in late March and early April, 
breeds from middle May through July, departs in late September 
and early October. The birds breeding at Omaha, Peru, Rulo, Weep- 
ing Water,and other points in extreme eastern Nebraska, are certainly 
nearer pusilla than arenacea. There are not sufficient specimens 
at hand to definitely state the exact ranges of each form. 
566. *Junco aikeni Ridgway—WHITE-WINGED JUNCO. 
A rather common summer resident in Warbonnet canyon, Sioux 
