:S8 3 .] 
Allen and Brewster on Colorado Birds. 
!97 
presenting various combinations of the characters of auratus 
and mexicanus. The few taken later proved to be all mexicanus , 
which Mr. Aiken tells us is the resident form, the “hybrids” 
being migrants. 
107. Asio wilsonianus. Long-eared Owl. — Saw a num- 
ber of fresh specimens at Mr. Aiken’s, killed in March and the 
early part of April. 
108. Bpeotyto cnnicularia hypogsea. Burrowing Owl. 
— Several colonies on the plains within a few miles of Colorado 
Springs. 
109. Circus cyaneus hudsonius. Marsh Hawk. — Oc- 
casionally seen. 
no. Accipiter fuscus. Sharp-shinned Hawk. — Seen 
a few times in April. 
in. Accipiter cooperi. Cooper’s Hawk. — Occasionally 
seen in April and May. 
1 1 2. Falco mexicanus. American Lanier Falcon. — 
Several pairs seen in April. 
1 13. Falco s parverius. Sparrow Hawk. — Common. 
1 14. Falco richardsoni. — Several Pigeon Hawks were 
seen at a distance and one adult male near enough to be recog- 
nized as of this species. 
1 15. Buteo swainsoni. Swainson’s Buzzard. — Not 
common. 
1 16. Archibuteo ferrugineus. Ferrugineous Rough- 
legged Buzzard.— A few seen but none taken. 
1 17. Aquila chrysaetus. Golden Eagle. — Frequently 
seen. An eyrie was discovered near the entrance to North 
Cheyenne Canon, from which young were taken about June 1. 
1 18. Cathartes aura. Turkey Buzzard. — Rare. Only 
a few times observed. 
1 19. Zenaidura carolinensis. Carolina Dove. — Abun- 
dant. Arrived April 20; found nesting May 15, on the ground. 
120. .ZEgialites vociferus. Killdeer Plover. — Not 
common. First seen March 27. 
121. iEgialites montanus. Mountain Plover. —Not 
uncommon. First observed April 19. A perfect egg was taken 
from a female shot May 9. 
122. Macrorhamphus griseus scolopaceus. Western 
Red-breasted Snipe. — Saw one example taken May 9. 
