Vireo philadelphicus. 1897 Lake Umbagog May } June } not detected this season although I visited almost all of the locations where I have found it in former years. copy 3 1903. June 14 // Heard two males singing this morning on the north road- growth woods just to the eastward of Rockland. One of them was in an aspen by the roadside singing on the nest which was about 30 ft. above the ground and some 10 ft. below the extrem top of the tree attached to one of the slender upright branches. After singing almost continually on the nest for 15 or 20 minutes the bird flew across the road and into the top of a much taller poplar when it continued singing giving me a clear view of its yellow breast as it sat perched on a dead twig in the full daylight. Shortly after this it returned to the nest & continued singing there for an hour or more. colon. 15 Gilbert & Alva Coolidge visited the bird's nest at 6.30 A.M. The ♂ was sitting to my great joy. He left the nest when Gilbert reached the base of the branch to which it was attached & stood a little, flying directly off into the woods out of sight. A few minutes later he returned bringing his mate. Both birds flew about in the tree near Gilbert but the ♂ acted shy & suspicious & soon departed again. The ♀ remained & was that by Alva. Gilbert cut off the branch & removed the nest to examine its fresh eggs. These constituted the full lot for which I examined & dissected the ♀ I found that she had laid her last egg. Both birds uttered a low trill called Gilbert's cry. " " Heard a Philadelphia Vireo singing this afternoon on the slope mountain side above the road near the highest point in Dover valley among stunted paper birches. 103