115 



month. Omaha, Lincoln, West Point, Neligh, Kearney, Long Pine, 

 Valentine. 



758b. Hylocichla ustulata alms Oberholser — Alma Thrush. 



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) — Audubon Hermit Thrush. 



Migratory ; our only definite record is of a specimen taken at Lin- 

 coln 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) — Hermit Thrush. 



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) — Robin. 



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 in small numbers all winter. Westward runs 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. 



761a. *Merula migratoria propinqua Ridgway — Western Robin. 



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 mericana bairdi Ridgway — Chestnut-backed Bluebird. 



Accidental. A bird of the west, occurring regularly as a migrant 



