J^ebraska Ornithologists' Union 49 



47. Lanius ludovicianus exciibitorides Swainson — White-rumped 



Shrike. 

 On July 11, 1911, Zimmer saw several of these shrikes 

 near Haigler. 



48. Vireosylva gilva (Vieillot) — Warbling Vireo, 



Zimmer heard a warbling vireo singing in the top of a 

 tall tree in the Ariekaree valley on July 6, 1911, but an 

 attempt to collect the bird was unsuccessful. No others of 

 this species were noted. It is possible that the warbling 

 vireo of extreme southwestern Nebraska may be the western 

 form, V. g. su'ainsoiii, which occurs in Sioux county and over 

 Colorado, but the taking of specimens must determine this 

 point. 



49. Geothlypis trichas occidentalis Brewster — Western Yellow- 



throat. 

 A single bird seen July 11, 1911, near Buffalo creek east 

 of Haigler should probably be referred to the western sub- 

 species, which is the breeding form in Colorado and in 

 northwestern Nebraska. The bird was noted by Zimmer, 

 but Avas not secured as it retreated to a dense brush heap 

 from which it could not be dislodged. 



50. Mimus polyglottos leucopteriis (Vigors) — ^Western Mocking- 



bird. 



Zimmer noted this bird twice at Haigler, on July 8 and 

 11, and collected a pair on the first mentioned date. They 

 were found in a little grove along the river. 



51. Toxostoma ruftitn (Linnaeus) — Brown Thrasher. 



Zimmer saw a single Brown Thrasher several miles west 

 of Haigler on July 6, 1911. It was in a thorn hedge and 

 probably nested somewhere in the vicinity. 



52. Penthestes atricapillus septefitrionalis (Harris) — Long-tailed 



Chickadee, 

 A single bird noted by Swenk along the river near Haig- 

 ler, flying by and calling, July 24, 1903. 



53. Sialia sialis (Linnaeus) — Bluebird. 



Heard by Zimmer on the morning of July 4 about 3 :40 

 A. M., before the local celebration started at Haigler, but 

 not found again until Julv 9. Among only a single pair 

 near this town and not observed elsewhere in the region by 

 either Zimmer or Swenk. 



