320 
Capt. Blakiston on American Birds. 
summer, 1858. Wing 23 in. long. Common on Saskatchewan 
River, and thence to Hudson’s Bay. It is sometimes seen in 
February, and remains until the rivers close in November. I 
was not fortunate enough to procure a specimen of either of these 
Eagles. 
As has been observed by Sir John Richardson, the Indians 
divide the year into moons, each of which is named after some 
natural occurrence. Among them are the Eagle and Goose 
Moons, at the times of the year when these birds first make their 
appearance after the winter. Now, although this lunar reckoning- 
may be very well for intervals of time, it is far from satisfactory 
in fixing certain periods of the year; for as the number of days 
in a year is not divisible by the number of days in a lunar month, 
so each year the same moon is about eleven days earlier, and in 
three years would take the place of the former one. 
7 
14. Pandion carolinensis. I regret that I cannot give a 
single instance of the occurrence of the Fish-Hawk in the interior 
of British North America. It is, however, by no means an un¬ 
common bird, and was observed by myself from Hudson’s Bay 
to the western base of the Rocky Mountains. It is rather early 
in going south in the fall of the year. 
15. Bubo yirginianus. $ No. 38. Forks of the Saskatche¬ 
wan, January 29th, 1858. Length 23 in., wing 15. Eye bright 
yellow. 
16. Bubo arcticus. 6 No. 52. Forks of the Saskatchewan, 
VMarch 25th, 1858. Length 22% in., wing 4£, tail 9J, 2nd, 3rd, 
and 4th quill-feathers nearly equal and longest. Eye very bright 
amber-yellow. Agrees with B. arcticus of the c Fauna Bor.-Am.’ 
P " \s\)-- 
17. Nyctea nivea. No. 186. Hudson’s Bay, common 
throughout the north; follows the Willow Grouse south in winter. 
18. SURNIA ULULA. 
November 7th, 1857. 
No. 21. Forks of the Saskatchewan, 
No. 39 6 . Same locality, January 29th, 1858. 
[To he continued.] 
/Si 
/ 
