It is doubtless the rule that birds which sing 
it ion of 
bird singing 
Warbling 
Vireo£ 
Red-eyed 
Vireo 
regularly and freely now rear two broods in a season. Such 
are the Robin, Bluebird, Song Sparrow, Swamp Sparrow, Chippy, 
Field Sparrow, Grass Finch, Towhee, Pine Warbler, and Carolina 
Dove. All these certainly rear two broods. I am doubtful 
about the Cat-bird and Veery, both of which are still singing 
well. Obvious exceptions to the rule are the Yellow-throated 
and Warbling Vireos which certainly do not breed twice but 
which sing late into the summer. A male of the latter 
species, which brought off its young successfully late in 
June and then left them to the care of the mother, has thus 
far sung continuously, since his arrival in early May, in 
the trees about the house. I heard him least often at the 
time when he was assisting the female in the care of the 
young, just from the nest, but he has not been wholly silent 
for a day this season and he is now singing as freely as he 
was in early June. 
The Red-eyed Vireo breeds very irregularly and I 
have often found nests with fresh eggs in July but this is 
probably due to the f act that the first nests are nearly 
certain to be plundered by Jays or Squirrels. On the whole, 
I do not think that this bird habitually if ever rears two 
broods in a season in this state. Nevertheless it regularly 
sings later into the summer than do®s almost any other birdT] 
At 3 P. M. I visited the Dove’s nest again. The 
female was on, facing north, head raised decidedly above the 
line of the back but not so high as on the 9th. I stood 
