Birda of the Adirondack Region. 
C.H,Merriaia. 
124. Circus hudsonius Vieillot. Marsh Hawk. 
BuUL N.O.O, Q.Oct, 1881, p, 233 
Notes 0*1 Some Winter Residents of 
Hudson Valley. B.A.Mearns. 
17. Circus cyaneus var. hudsonius. Marsh Hawk. — Observed 
during every winter; particularly numerous in that of 1874- 75, when 
numbers were observed in the bluish plumage, on the meadows near Con- 
stitution Island. 
Bull N.O.O. 4 ,Jan.. 1879. P.37 
Bds. Ob*, at Little and Great Gull Te- 
lands, N.Y. Aug. '88 B.H.Dutch<r, 
II. Circus hudsonius. Marsh Hawk. — A single specimen was seen 
and secured on Great Gull, August 12. The bird was first flushed from the 
swamp, where he had probably been feeding. As we had no guns with us 
when he was first flushed, we left him undisturbed, but returned later in 
the day better prepared. As we approached the island a large flock of 
Terns were observed hovering over a small depression near the summit. 
We very cautiously approached the spot around which the Terns were fly- 
ing, suspecting that they were worri'ing the Hawk. This conjecture 
proved true, but the bird was so engaged in feeding, or was so intimidated 
by the Terns, that he did not rise until we were within tvrenty feet ofhim ; 
and then flew off very slowly, keeping within a few feet of the ground. 
Some cold lead, however, soon put an end to his career. In the stomach 
I found the remains of a mouse and of a Yellow Warbler. This Hawk is 
known at Little Gull as the ‘Mouse Hawk.’ 
tnU April, 1889, p, ! , 
