152 THE CHICAGO ACADEMY OF SCIENCES. 



FAMILY LANIID^: SHRIKES. 



Genus LANIUS Linnaeus. 1758. 



Lanius borealis Vieilot. Northern Shrike. 



Lanius lorealis Vieillot, Ois. Amer. Sept., I, 1807, 80, pi. 50. 

 Collurio lorealis Baibd, Review Amer. Birds, June, 1866, 440. 

 Popular synonyms : Gbeat Amebican Sheikb. Geeat NobtheeK 

 Sheike. Geeat Noetheen Butchee Bied. 



The Northern Shrike is a common winter resident, arriving 

 the last of October and departing late in March. Mr. E. W. 

 Nelson suggests that "sometimes they remain late in the season 

 and may breed."* Probably the most advantageous places to 

 observe these birds are in the city parks, where they fare 

 sumptuously on the English sparrows. I have repeatedly seen 

 them drive the sparrows from under the eaves of the buffalo 

 pens in Lincoln Park, Chicago, in order to capture them. 



The range of this species includes northern North America, 

 in winter south to about latitude 35", and on the Pacific coast 

 to northern California. It breeds north of the United i States. 



Lanius ludovicianus Linnaeus. Loggerhead Shrike. 



Lanius ludovicianus Linnaeus, S. N., ed. 12, I, 1766, 134. 

 Lanius ludovicianus var. ludovicianus Linn^tjs, of some authors. 

 Popular synonyms : Common Amebican Sheike. Louisiana Sheike. 

 SouTHEEN Butchee Bied. 



The Loggerhead Shrike is a common summer resident, arriv- 

 ing early in March and departing the first of November. 



• The range of the Loggerhead Shrike covers the United 

 States east of the Great Plains, and it breeds from the Gulf of 

 Mexico northward excepting on the Atlantic coast where it breeds 

 north to Virginia and casually to the southern portion of New 

 Jersey. It also breeds through western Pennsylvania and New 

 York to the New England states. 



FAMILY VIRIONID.^]: THE VIREOS. 



Genus VIREOSYLVA Bonaparte, 1838. 



Vireosylva olivacea (Linnaeus). Red-eyed Vireo. 



Mwscicapa olivacea Linn^us, S. N., ed. 12, I, 1766, 327. 

 Vireo olivaceus Bonapaete, Ann. Lye. N. Y., II, 1826, 71. 

 Popular synonym : Red-eyed . Greenlet. 



The Red-eyed Vireo is a common summer resident, arriving 

 early in May and departing early in October. 



*Birds of Northeastern Illinois, Bull, of the Essex Institute, Vol. VIII, 1876, 104. 



