Vireo sol Itarlus 
Concord, Mass. 
1897. The only bird which I have iaet with during the month was 
April. a male in full song near the cabin at Ball's Hill early on the 
morning of April 27th. Apparently these Vireos have not in- 
creased (at least in Concord) since the severe blow which be- 
fell them in the South a few winters ago. I do not think that 
any have bred near Ball's Hill since. 
Vireo solitarius . 
Phillips Academy, Andover, Mass. 
1898. The Blue-headed Vireo I have found much more abundant 
June 17. than the bird-books seem to indicate. I see and hear them 
in various parts of the town, and, without making any spec- 
ial search, I have found two nests. 
Extract from letter of Howard I. Ford. 
