Vol. XVII 
iaas Brooks, Some British Columbia Birds. 105 
it in summer as far east as Arrow Lake. The two subspecies intergrade 
perfectly. 
14. Buteo lineatus elegans. RED-BELLIED BuzzArp.— Only noticed 
west of Cascades. Rare. 
15. Buteo swainsoni. SWAINSON’s BuzzArp.— The darkest form of 
this Buzzard is a common breeder on all the mountains at high elevations, 
being only found in open or park like country. The only pair of white- 
breasted birds I ever saw in the Province was breeding on a low mountain 
near Vernon. 
16. Falco rusticolus. GyRFALcoN.— A regular winter visitant west 
of the Cascades. Young birds are sometimes almost dark enough for 
obscurus, and adults light enough for the Iceland form. The flight of 
this Falcon is as a rule rather slow compared with that of other large 
Falcons, but when in full pursuit of a Duck it gets up a tremendous veloc- 
ity and can turn and twist almost as quickly as a Goshawk. In ordinary 
flight the wing stroke is much shorter than a Peregrine’s, and the bird 
when going straight away appears to be hovering like a Kestrel. 
17. Falco mexicanus. PRAIRIE FALcon. — This species used to bea 
regular migrant to lower Fraser Valley, but I have not seen or taken one 
for three years, nor have I ever seen one east of the Cascades. 
18. Falco peregrinus anatum. PEREGRINE FaLcon.— This is the only 
form I have taken, though fea/eZ undoubtedly occurs on the coast. The 
form breeding on lakes in the interior seems to approach closely the 
small form that breeds on the Mediterranean (6rooke¢ Sharp). 
19. Falco columbarius. P1GEON Hawk. 
20. Falco c. suckleyi. BrLack MrerRiin. — Both of these forms of Mer- 
lin occur both east and west of Cascades, but I have never seen a speci- 
men that could not be referred without hesitation to one form or the 
other. 
2t. Falco richardsonii. RicHARDSON’s MERLIN. — Occurs in migra- 
tions only, both east and west of the Cascades. 
22. Falco sparverius. AMERICAN SPARROW HAwk.—Mr. Brewster 
identifies specimens from this Province with the form deserticola 
(Mearns). It is a permanent resident throughout the southern portion 
of the Province. 
23. Syrnium occidentale. WrEsSTERN BARRED OwL. — Apparently con- 
fined to the lower Fraser Valley, where it is a rare and local resident. 
24. Nyctala richardsoni. RICHARDSON’S OwL.—A_ considerable 
irruption of this Owl occurred throughout the southern interior during 
the winter of 1898-99. 
25. Bubo virginianus. GREAT HORNED OwL.— The typical form 
occurs, as well as every possible intergrade between the darkest satu- 
ratus and subarcticus, almost light enough for arctzcus. 
26. Speotyto cunicularia hypogea. BuRROWING OWL. —I have three 
records west of the Cascades. East of them it is a tolerably common 
breeder in the semi-arid interior. 
