THE YOUNG OF THE RED-SHOULDERED HAWK 
( BUTEO LINBATUS). 
BY FRED. H. KENNARD . * 1 
On May 26, 1889, I found two young birds of this species 
in a nest in a pine in West Roxbury, Mass. They were covered 
with down, and I judged them to be somewhere between two 
and three weeks old. I took one of them, the larger one, and 
on May 31, just five days later, I returned and took the other. 
The first one had his primaries, secondaries, tertiaries and 
Read before the Nuttall Ornithological Club, April 2, 1894. 
the lines and dates are made up from the observations on the 
other two younger Hawks, and from data referring to the two 
1889 Hawks. 
I called the 1893 Hawks ‘Bute’ (short for Buteo ), ‘Topsy’ and 
‘Pete.’ The first two were older than Pete, and I supposed 
them then, and from their growth later, to be females. Bute, 
when I got her, had all the feathers that I have spoken of with 
regard to the 1889 Hawks, well developed. Her back feathers 
were also well along and had spread upwards and downwards, 
and there were, too, quite a lot of feathers on her breast. Dur- 
ing the week June 12-18, inclusive, all the rest of her feathers 
either got well under way, or appeared, as shown by the 
diagram. 
Topsy proved at first, by accurate observation, to be exactly 
two days behind Bute in the growth of her feathers, though she 
