Zenaidura macroura . 
Concord, 
Mass. Scarcity in Concord, Mass. 
1399. 
few years ago to the presence there during the last two or 
June. 
three seasons of one or more pairs of Cooper's Hawks. I doubt 
(2). 
if these Hawks often succeed in catching them but they cer- 
tainly frighten them away from the immediate neighborhood of 
every piece of woods where they settle for the summer. 
