I20 THE CHICAGO ACADEMY OF SCIENCES. 



The range of this species includes the upper Mississippi Valley 

 and from the region of the Great Lakes eastward to New Eng- 

 land, breeding practically throughout this range. It winters 

 south to South Carolina and Texas. 



FAMILY CORVIDiE: CROWS, JAYS AND MAGPIES. 



Genus PICA Brisson, 1760. 



Pica pica hudsonia (Sabine). American Magpie. 



Corvus pica Wilson, Amer. Orn., IV, 1811, 75, pi. 35, fig. 2 (»eo 



Linnaeus). 

 Corvus hudsonicus Sabine, App. Franklin's Journ., 1823, 25, 671. 

 Pica melanoleuca Audubon, Synop., 1839, 157. 



Picus caudata var. Imdsonica Allen, Bull. Mus. Comp. Zool., Ill, 

 , 1872, 178. 

 Pica pica hudsonica Jordan, Mao. Vert., ed. 4, 1884, 94. 

 Popular synonym : Black-billed Magpie. 



This species is included in this list on the strength of Mr. 

 Robert Kennicott's statement that is was "not uncommon in 

 winter" at the time his list of Cook County birds was published.* 



This is a species which ranges from the Plains westward to 

 the Cascade Mountains and north to Alaska. It is casual visitor 

 east and south to Michigan. 



Genus CYANOCITTA Strickland, 1845. 



Cyanocitta cristata (LinnsBus). Blue Jay. 



Corvus cristatus Linn.s;us, S. N., ed. 10, I, 1758, 106. 

 Cyanurus cristatus Sw. & Kicii., Fauna Bor. Amer., II, 1831, 49."). 

 Cyanocorax cristatus Bonapabte, List, 1838, 27. 

 Cyanocitta cristata Steickland, Ann. Nat. Hist., XV, 1845, 261. 

 Cyanura cristata "Sw." in Nelson's List, Bull. Essex Inst. Vol. VIII, 

 1876, 112. 



The Blue Jay is an abundant resident. 



Its range is extensive, covering the whole of North America, 

 east of the Great Plains and from the Fur Countries on the north 

 southward to the Gulf of Mexico. It breeds throughout its 

 range. 



Genus COEVIIS Linnaeus, 1758. 



Corvus coraz principalis Rid^way. Northern Raven. 



Corvus corax Wilson, Amer. Orn., IX. 1825, 136, pi. 75, fig. 3 (nee 

 Linnaeus). 



♦Trans. Illinois State Agri. Society, Vol. I, 18531854, 585. 



