318 
1868. 
Mar. 18, 
1809. 
Peb. 22. 
« 24. 
Dec. 21. 
1872. 
Jan*-30, 
Haliaetus leucocephalus. 
Middlesex County, Mass. 
Saw several, probably the young as they looked per¬ 
fectly black. 
An adult with white head and tail (Cambridge), 
Saw an adult on Fresh Pond, probably the same seen 
on the 22d, He chased a Gull ( Larus argentatus ), direct¬ 
ly over me, upen but upon being fired at, relinguished 
the pursuit and turning aside, was quickly out of sight. 
His flight was very rapid, and was performed by quick 
flaps of the vangs with few intervals of sailing. His 
white head and tail were very conspicuous. 
Saw a very fine adult at Concord. 
A fine adult in Boston market, with the head and 
tale white, it was shot in Sudbury Mass. 
