Sept., 1919 BIRD NOTES FROM OREGON AND CALIFORNIA 203 
Cathartes aura septentrionalis. Turkey Vulture. Seen frequently throughout en- 
tire region traversed. 
Accipiter cooperi. Cooper Hawk. One seen June 9 along Biitzen River, and an- 
other near Adel September 2. 
Circus hudsonius. Marsh Hawk. Common resident of marshy sections. Breeding 
plentifully around Malheur Lake. Several nests noted in May and early June; first 
young seen May 20. In fall does considerable damage to young poultry. This latter char- 
acteristic of the species was entirely new to the writer, as the Marsh Hawk had always 
been considered strictly a beneficial bird. Mrs. Springer stated that this bird killed her 
young chickens, and the writer’s personal observations fully confirmed the fact. Have 
never noted this in any other locality and it may be only a local habit. 
Buteo borealis calurus. Western Red-tail. Rather common in most parts of the 
region, though rare in summer around Malheur Lake, probably owing to absence of 
trees. Nest containing three eggs was noted in juniper tree near Clear Lake April 7. 
Buteo swainsoni. Swainson Hawk. Two birds seen near Malheur Lake June 26 
and two the day following; fairly common during August. Common along most of the 
Fig. 44. NEST AND YOUNG OF HGRET AT MALHEUR LAKE, OREGON, JUNE 28, 
1918. 
route between Malheur and Klamath Falls in late August and early September. Partic- 
’ ularly abundant in canyons on slopes of Warner Mountain. 
Archibuteo lagopus sancti-johannis. Rough-legged Hawk. Seen occasionally in 
late April between the lake and Burns, as also between Burns and Bend. 
Aquila chrysaétos. Golden Eagle. Rather common in mountainous sections. 
Haliaeétus leucocephalus leucocephalus. Bald Eagle. Two birds seen at Clear 
Lake April 8. 
Falco mexicanus. Prairie Falcon. Breeds plentifully in hill region surrounding 
Harney Valley. In fall, appears in vicinity of the lake in some numbers in pursuit of 
wild fowl and poultry. 
Falco peregrinus anatum. Duck Hawk. Fairly common in August with last spe- 
cies, but less plentiful. 
Falco columbarius columbarius. Pigeon Hawk. Pigeon hawks were occasionally 
seen near Malheur Lake in August. Two specimens examined were clearly referable to 
the above subspecies. 
