86

Concord, Mass.
1916
Aug. 30 
to
Nov. 4

Goshawks

stream, the big bird was certainly recognized as a 
female Goshawk, immature as to the plumage of her
breast & flanks - which were coarsely marked longitudinally
with blackish - but with much blue on the back, which,
however, overspread that part in broad patches separated
from one another by more or less brownish, instead of quite
uniformly, as with fully adult Goshawks. We could see
all this plainly enough through our field glasses as the bird
swung around and around in narrow circles, alternately
showing the upper and under surfaces of her body, wings
and tail. She finally resumed direct, southward
flight and quickly passed out of sight beyond some
tall maples that line the river banks.
  A second Goshawk, differing from the first by being
altogether clothed in plumage characteristic of young - not
merely immature - birds of its species, was observed by