290 
Aecipiter cooperi. 
Middlesex County, Mass. 
1868. 
May 28. 
Found a nest containing five eggs which had probably 
been laid several days. The female remained on the nest 
till the las*^ moment and then flew off in silence and 
disappeared among the trees. The nest was placed in a 
v/hite pine at the height of about thirty feat and was 
composed alternately of large sticks and lined with 
strips of bark; it v,ras about eighteen in ches in 
diameter and was hollowed very slightly. 
1869. 
Apr. 21, 
A pair in pine woo(is in Waltham. The ground under¬ 
neath the tree where they were sitting was strewn with th> 
feathers, bones, and fragments of skin of the Ruffed 
Grouse. I shot the male and found in his crop the re¬ 
mains of a Woodclack. 
1870. 
May 23. 
Nos t in pine with five fresh eggs. Female silent¬ 
ly loft the nest upon first alarm. 
1872. 
Apr. 3. 
Numbers migrating at Concord. 
1874. 
Doc. 28. 
A large female passed over our place in Cambridge 
to-day. 
1876. 
May 7, 
A nest with one fresj^ egg found in Waltham, by Fra- 
zar. ’ 
Aug. 27. 
Saw a female near the eastern end of the Willows, 
Oct. 7. 
One on the Assabet River, Concord, 
i 
1879. 
July 13. 
' As I was driving through Lincoln a female Cooper’s 
Hawk suddenly appeared over the topsof some birches that 
lined the road \yhich it crossed at right angles; then 
for a half a mile or more, glided over a slightly rising 
expanse of open ground covered with low oak scrub, speed¬ 
ing straight as an arrow, and not once, even v/hen it 
slightly raised its flight to clear some higher trees 
that crested the hill tops beyond, did it move its wings 
perceptibly. Silently, swiftly, relentlessly, like a 
grim phantom it pursued its way and v/as gone in the 
rosy light of the su mmer sunset. 
1880. 
May 6. 
Upon firing at an oven bird in some pine woods in 
Belmont, a Cooper’s Hawk started from a tree near me. 
Upon investigating I found the nest in the top of a pitch 
mite’ h afterwards the female returned with hor 
mate, both birds circling overhead, uttering a harsh, 
£fi^^Yory like that of Centurus and at times cackling line 
