I46 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Lanivireo flavifrons (Vieillot). Yellow-throated Vireo. 



A tolerably common summer resident of the orchards, shade 

 trees, and more open woodland, from May until August. 



Earliest record. New Haven, April 2J, 1886; Portland, April 

 26, 1889. 



Latest record. New Haven, Sept. 20, 1900, Oct. 12, 1906 

 (A. A. S.) ; Portland, Sept. 21, 1893. 



Nest. In tall tree, 12 to 35 feet from the ground. 



Eggs. Usually 4; early in June. 



Nesting dates. Earliest record. June 6, 1900, three eggs and 

 one Cowbird's egg (L. B. B.). Latest record. June 17, 1893, four 

 eggs (H. W. F. and L. B. B.) ; July 10, 1894, one young and 

 one spoiled egg (L. B. B.). 



J. H. S. notes that this species and Vireosylva gilva gilva 

 usually migrate together. 



Lanivireo solitarius solitarius (Wilson). Blue-headed 

 Vireo ; Solitary Vireo. 



A common fall and much rarer spring migrant in early May 

 and October ; very rare summer resident. 



Spring migration. Earliest record. New Haven, May 3, 

 1909, April 20, 1892 (Hedges) ; Portland, April 18, 1908, Litch- 

 field, April 25, 1905 (E. S. W.). Latest record. New Haven, 

 May 8, 1907, May 12, 1891 (H. W. F.) ; Portland, May 9, 1882; 

 Litchfield, May 26, 1905 (E. S. W.). 



Fall migration. Earliest record. New Haven, Sept. 22, 1896; 

 Portland, Sept. 28, 1899; Litchfield, Sept. 18, 1891 (L. B. W.). 

 Latest record. New Haven, Oct. 18, 1888, Oct. 23, 1906 (A. A. 

 S.) ; Portland, Oct. 19, 1892. 



Nest. In young tree or bush, from 5 to 10 feet from the 

 ground. 



Eggs. Usually 4; late in May and early in June. 



Nesting records. Eastford, May 31, 1880, four young; June 

 6, 1885, two eggs and one Cowbird's egg; May 14, 1886, build- 

 ing, May 27, four eggs; May 27, 28, 1886, nests; June 10, 1886, 

 nest, birds hatched and flown away (C. M. Jones). 1 Nor- 

 folk, June 23, 1893, four fresh eggs (W. E. T., in coll. of J. H. 



> O. and O., xii, 2, p. 26. 



