Interior of British North America. 43 



1*. Falco anatum. 



Besides my specimen from near the head-waters of the south 

 branch of the Saskatchawan River ('Ibis/ vol, iii, p. 315), I have 

 received the American Peregrine from the west coast of Hudson's 

 Bay ; and Mr. Bernard Ross notices it, but says it is rare on the 

 Mackenzie. 



2. Falco columbarius. 



With respect to this species, I would correct a typographical 

 error which occurs in my former notes [' Ibis,' vol. iii. p. 316), 

 where the colour of the " feet, cere, and space round the eye '' 

 of a female should be light yellow, in contradistinction to the 

 bright yellow of the male. No. 117. This distinction was noticed 

 in the case of each of the two pairs which I examined. The bird 

 figured in the ' Fauna Boreali- Americana,' pi. 25, as F. cesalon, 

 is doubtless the Pigeon-Hawk. In my former papers (' Ibis,' 

 vol. iii. p. 316), I mentioned having obtained eggs of this 

 species. Since then, I have seen Part 1 of Dr. Brewer's ' North 

 American Oology,' where he has figured an egg supposed to 

 belong to it, but in the letter-press mentions that Mr. Audubon's 

 figure is very difi'erent. My specimens prove that Mr. Audubon 

 was correct, and that Dr. Brewer has made an unlucky selection 

 in taking a specimen when he was only told that a bird which 

 was given to him at the same time was the parent, in preference 

 to the personal observation of a naturalist of Mr. Audubon's 

 merits. The nest which I found (the parent birds belonging 

 to which I shot, and preserved the male) was situated in a small 

 clump of willows and aspens on the prairie, not more than ten 

 feet from the ground, and contained four eggs. The eggs and 

 bird collected by M. Bourgeau corresponded with my own. I 

 find that Mr. Bernard Ross obtained this bird as far north as 

 the Arctic Circle, on Mackenzie River, and I am glad to see that 

 he has also secured the egg. 



Falco candicans, F. islandicus, et F. gr(enlandicus. 

 The Gyr-Falcon is given in the ' Fauna Bor.-Am.,' as identified 

 by a specimen from Hudson's Bay, as F. islandicus (Latham); 



* The uumbers attached to species refer to my original hst (' Ibis,* Nos. 

 12 and 13). 



