115 
month. Omaha, Lincoln, West Point, Neligh, Kearney, Long Pine, 
Valentine. 
758b. Hylocichla ustulata almz Oberholser—AumMa TurRusH. 
The western or mountain form of ustulata and a common migrant 
in Sioux county, arriving about the middle of May and a few lingering 
through the summer in Warbonnet canyon,where it may breed. Ober- 
holser has kindly verified this determination. Some, possibly most, 
of the records provisionally placed under the preceding form may 
belong to this recently differentiated race, especially those from Valen- 
tine and Long Pine. 
759a. Hylocichla guttata auduboni (Baird)—Aupuson Hermit Torus. 
Migratory; our only definite record is of a specimen taken at Lin- 
ecoln April 9, 1900, by M. A. Carriker, Jr., and identified by Ober- 
holser as auduboni. Probably a number of the records placed pro- 
visionally under the next form belong here. 
759b. Hylocichla guttata pallasii (Cabanis)—-HEermir THrRusH. 
An uncommon migrant in eastern Nebraska, arriving the first week 
in April and lingering through May, reappearing late in September. 
The breeding record from Alda by F. W. Powell (Bull 2. Div. Orn. p. 
287) was probably a mistake. Omaha, Lincoln, Fairbury, West Point, 
Dakota county. 
761. *Merula migratoria (Linnaeus)—Rosin. 
Over the whole state, abundant summer resident and breeder; 
arriving the first week in March, breeding from the middle of April 
through May and June, departing late in October and early in No- 
vember, present insmall numbers all winter. Westwardruns into the 
following form, but typical migratoria occurs over the state, though 
less common westward. Omaha, Lincoln, West Point, Neligh, Cherry 
and Sioux counties—breeding. 

76la. *Merula migratoria propinqua Ridgway—WestTERN Rosin. 
Western Nebraska, not recorded east of the 100th meridian even 
during migrations. Most of our Western birds are intermediates 
with an occasional well-defined propinqua. Breeds in Sioux county, 
east in migrations to Curtis. Dates as for preceding, or somewhat 
later. 
766. *Sialia sialis (Linnaeus)—BLUEBIRD. 
Entire state; abundant eastward but rare westward; arriving first 
week in March, breeding from early in May to the middle of July, 
departing from late in September to the middle of October, rarely 
wintering. Omaha, Peru, Lincoln, Beatrice, West Point, Neligh, 
Long Pine, and Cherry and Sioux counties—breeding, even in the 
latter locality. 
767a. Sialia mexicana bairdi Ridgway—CuESTNUT-BACKED BLUEBIRD. 
Accidental. A bird of the west, occurring regularly as a migrant 
