16 Smith, Double-crested Cormorants Breeding in Cent. III. [jan. 



wherever steep slopes with crevices occur. Hence especially noticeable 

 in badlands and on the cliffs of the steep-sided buttes. 



147. Troglodytes aedon parkmani. Western House Wren. — 

 Nests abundantly in the more wooded portions of the Little Missouri 

 Valley and in the pine forests of the high buttes. 



148. Sitta canadensis. Red-bellied Nuthatch. — A common resi- 

 dent in the pines of the buttes. 



149. Penthestes atricapillus septentrionalis. Long-tailed Chick- 

 adee. — Breeds abundantly in the forests of the buttes. Common later in 

 the woods elsewhere. 



150. Hylocichla ustulata swainsoni. Olive-backed Thrush. — 

 Rare migrant. 



151. Hylocichla fuscescens salicicola. Willow Thrush.* — Not 

 uncommon along the Little Missouri, August 27-September 3. 



152. Planesticus migratorius. Robin. — Breeds tolerably com- 

 monly in the buttes and along the Little Missouri River. 



153. Sialia sialis. Bluebird. — Common breeder in the pines of 

 the higher buttes. 



154. Sialia currucoides. Mountain Bluebird. — A brood was seen 

 in the Short Pine Hills. Grinnell also reports seeing a brood of young 

 there in 1874. 



DOUBLE-CRESTED CORMORANTS BREEDING IN CEN- 

 TRAL ILLINOIS. 1 



BY FRANK SMITH. 



The Double-crested Cormorant (Phalacrocorax auritus) is well 

 known in Illinois as an abundant migrant along the Illinois River 

 bottomlands in both spring and autumn, when flocks of several 

 hundred may sometimes be seen for periods of several weeks taking 

 heavy toll from the fish life of the region. 



The southern limit of their breeding range east of the Mississippi 

 River seems to be not very well known. Kumlien and Hollister 

 in 'The Birds of Wisconsin' (1903) suggest that they probably 

 nest in certain counties in the northern part of that State and cite 



i Contributions from the Zoological Laboratory, University of Illinois, under 

 the direction of Henry B. Ward, No. 6. 



