316 Capt. Blakiston on Birds collected and observed 
(Hz 
<+3 
Female: same date. Length 13Jin., wing 8J-, tail 5f. Legs 
and feet somewhat duller yellow than male, bill same colour as 
male, and cere greenish yellow. These two specimens had large 
intestinal worms, but were in very good condition. 
No. 117 S • Forks of the Saskatchewan, May 25th, 1858. 
Length 11^ in., wing 7J, tail 5. Feet, cere, and space round the 
eye bright yellow, bill bluish horn-colour. Female shot at the 
same nest: length 12f in., wing 8J, tail 5J. Feet, cere, and space 
round the eye oright yellow. The nest of these birds was placed 
ten feet from the ground in a clump of willows and aspen, and 
contained four eggs. 
The Pigeon Hawk appears to be as abundant and widely 
distributed in the northern as in the temperate regions of North 
America, where it is found to range from the Atlantic to the 
Pacific. Sir John Richardson mentions it as common on the 
coasts of Hudson's Bay, and I can bear testimony to the same 
fact in the interior. 
It is curious that in both pairs of birds mentioned above, which 
I examined carefully, long intestinal worms were found. 
In my collection are three eggs of this species, with the male 
bird belonging to the nest. M. Bourgeau, the indefatigable bo¬ 
tanist of Captain Palliser's late exploring expedition, obtained a 
female specimen and eggs. 
3. Astur atricapillus. $ No. 89. Forks of Saskatchewan 
lH i River, May 7th, 1858. Length 24 in., wing 13J, tail 11. Bill 
blue horn-colour, feet light dull yellow, cere light greenish yellow, 
eye reddish orange. Shot off the nest, which contained four eggs. 
No. 13 <$ young. Saskatchewan River, October 14th, 1857. 
Length 22|in., wing 13. Eye bright yellow, feet and cere light 
dirty greenish yellow. 
My specimens of theAmerican Goshawk agree in measurements 
with the dimensions given by Professor Baird; but the total 
lengths given in f Fauna Bor.-Am.' are considerably greater, 
which leads me to think that they are measurements of the pre¬ 
served specimens. I take this opportunity of stating that all 
the measurements given by me, which can be influenced by the 
process of preparation, are from the specimens before skinning; 
and that the colours of the different parts which change after 
