152 THE CHICAGO ACADEMY OF SCIENCES. 



FAMILY LANIIDJE: SHRIKES. 

 Genus LANIUS Linnaeus. 1758. 



Lanius borealis Vieilot. Northern Shrike. 



Lanius borealis VIEILLOT, Ois. Amer. Sept., I, 1807, 80, pi. 50. 

 Collurio borealis BAIBD, Review Amer. Birds, June, 1866, 440. 

 Popular synonyms : GREAT AMERICAN SHRIKE. GREAT NORTHERN 

 SHRIKE. GREAT NORTHERN BUTCHER BIRD. 



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 States. 



Lanius ludovicianus Linnaeus. Loggerhead Shrike. 



Lanius ludovicianus LINN^US, S. N., ed. 12, I, 1766, 134. 

 Lanius ludovicianus var. ludovicianus LINNAEUS, of some authors. 

 Popular synonyms : COMMON AMERICAN SHRIKE. LOUISIANA SHRIKE. 

 SOUTHERN BUTCHER BIRD. 



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 VIRIONIDJE: THE VIREOS. 



Genus VIREOS YLVA Bonaparte, 1838. 



Vireosylva olivacea (Linnaeus). Red-eyed Vireo. 



Muscicapa olivacea LINNAEUS, S. N., ed. 12, I, 1766, 327. 

 Vireo olivaceus BONAPARTE, 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. 



