442 REED-WRIGHT— THE VERTEBRATES OF [October i, 



during winter. They are more or less irregular at all seasons ex- 

 cept mid-summer. Nests with eggs have been found from June 15 

 to August 8. 



73. Family Laniid^. The Shrikes. 



297 (621). Lanius borealis Vieillot. Northern shrike. 

 Occasional winter visitant, most often seen in January and Feb- 

 ruary. The earliest record of this species in the fall is November 

 8, 1875, ^"d November 25, 1908. The latest spring record is Feb- 

 ruary 24, 1905. 



298 (622^). Lanius ludovicianus migrans W. Palmer. Northern 

 loggerhead shrike. 



An uncommon but regular spring migrant. The average date of 

 arrival is March 24, the earliest, March 17, 1907. The latest date 

 upon which it has been seen is May 24, 1904. " A nest with six eggs 

 was found at Ithaca in May, 1877, by A. R. Ingersoll " (C. J. Pen- 

 nock). 



74. Family Vireonid^. The Vireos. 



299 (624). Vireosylva olivacea (Linnaeus). Red-eyed vireo. 

 Common summer resident. The average date of spring arrival 



is May 5, the earliest, April 30, 1906. The nesting season extends 

 from May 30 to July i. It remains in the fall until the last week 

 in September. 



300 (626). Vireosylva philadelphica Cassin. Philadelphia vireo. 

 Rare. Three specimens have been taken within the basin as 



follows: a male May 16, 1906, and a female September 21, 1907, 

 both in the collection of L. A. Fuertes, and a specimen, taken Octo- 

 ber I, 1908, in the collection of Cornell University. 



301 (627). Vireosylva gilva (Vieillot). Warbling vireo. 

 Common summer resident. The average date of arrival in spring 



is May 2, the earliest, April 27, 1908. Nests with eggs are found 

 from May 12 to June 10. It departs in the fall about the middle of 

 September. An individual seen on September 19, 1908, is the latest 

 record. 



302 (628). Lanivireo flavifrons (Vieillot). Yellow-throated vireo. 

 Common summer resident. The average date of spring arrival 



