83 



136. Vireo olivaceus (Linn.). 



RED-EYED VIREO. 



Above, clear olive-green; beneath, ■white; crown, ashy bordered on 

 each side by blackish; a conspicuous white line over the eye; iris, red. 

 Length, about 6 inches. 



Abundant summer resident. Earliest arrival, May 6 ; 

 departs in September. Raises 1 or 2 broods. Eggs 3-5, white 

 spotted at the larger end with blackish. Nest of strips of 

 bark, fine grass, cobwebs, paper, etc., neatly and compactly 

 woven together, pensile in the fork of a twig usually within 6 

 or 8 feet of the ground, Eggs laid in June and July. Feeds 

 on insects. Beneficial. Notes, loud and clear, especially 

 noticeable in the middle of hot summer days, when 'few other 

 birds sing. Our commonest vireo and found not only in wood- 

 land, but in orchards and among shade trees, even within the 

 village. 



137. Vireo gilvus (Vieiil.). 

 WARBLING VIREO. 



Above, ashy olive-green; beneath, white with a yellow tinge. Length 

 65-6 inches. 



Not very common summer resident. Earliest arrival May 

 5 ; departs in September. Habits, eggs and nest like the pre- 

 ceding species but the nest is usually in a tall tree. A very 

 sweet singer. 



138. Vireo flavifrous (Vieill.). 

 YELLOW-THROATED VIREO. 



Above, olive-green, shading into ash on the rump; throat and breast, 

 bright yellow; belly white. Length, 6 inches. 



Not uncommon in May and probably breeds, though it has 

 not been noted here in summer. Earliest arrival May 13. 

 Habits, eggs and nest similar to the preceding species, but the 

 nest is covered externally with lichens. Notes, richer, deeper 

 and more deliberate than thos^ of the red-eyed vireo. 



