Archibuteo las onus sancti-.iohannis. 
Concord, 
Mass. 
1894. 
'VwVc 1 3 
Ocfcm 
to- 
Ne*==gl . 
The Hough-leg (observed on Nov. 13th) was in the dark 
phase of plumage. It looked as black as a crow as it passed 
me within about 150 yards. Keeping straight across the mead- 
ows towards the south-west. Its flight was easy, graceful 
and bouyant - quite unlike the firm, somewhat heavy flight of 
our Buteos and much more like the flight of the Marsh Hawk 
when that bird is making directly across country for some 
distant hunting ground. The wing beats were slow and list- 
less and alternated with short periods of scaling. At each 
upward stroke of the wings their white under surfaces were con 
spicuously displayed and showed in strong contrast to the deep 
black of the rest of the plumage. This is the only black 
Hough-leg which T remember to have ever seen on the Concord 
meadows. 
