310a. =Wild turkey.= MELEAGRIS GALLOPAVO FERA. Resident; rare; once abundant, but will probably soon be exterminated; not certain whether Colorado birds are eastern or western forms. 312. =Band-tailed pigeon.= COLUMBA FASCIATA. Summer resident; local; breeds from 5,000 to 7,000 feet and occasionally higher. 316. =Mourning dove.= ZENAIDURA MACROURA. Summer resident; very abundant; breeds everywhere below the pine region up to 10,000 feet, though usually a little lower; in fall ranges up to 12,000 feet. 319. =White-winged dove.= MELOPELIA LEUCOPTERA. Four records of this straggler in Colorado; its usual range is subtropical, though not uncommon as far north as the southern border of the United States. 325. =Turkey vulture.= CATHARTES AURA. Common summer resident; breeds from plains to 10,000 and even 12,000 feet. 327. =Swallow-tailed kite.= ELANOIDES FORFICATUS. Summer visitor; rare or accidental; bird of the plains, not regularly west of central Kansas. 329. =Mississippi kite.= ICTINIA MISSISSIPPIENSIS. Accidental; two records; a bird of eastern and southern United States, and southward. 331. =Marsh hawk.= CIRCUS HUDSONIUS. Common resident; most common in migration; a few remain throughout winter; breeds on plains, and in mountains to 10,000 feet; in fall may be seen at 14,000 feet. 332. =Sharp-shinned hawk.= ACCIPITER VELOX. Common resident; much more common in mountains than on plains; breeds up to 10,000 feet. 333. COOPER'S HAWK. ACCIPITER COOPERI. Common resident; breeds from plains to 9,000 feet. 334. =American goshawk.= ACCIPITER ATRICAPILLUS. Resident; not uncommon; breeds from 9,000 to 10,000 feet; more common in winter than summer. 334a. =Western goshawk.= ACCIPITER ATRICAPILLUS STRIATULUS. Winter visitor; rare, if not accidental; Pacific Coast form; comes regularly as far east as Idaho. 337a. =Krider's hawk.= BUTEO BOREALIS KRIDERII. Resident; not uncommon; nests on the plains; no certain record for the mountains. 337b. =Western red-tail.= BUTEO BOREALIS CALURUS. Abundant resident; this is the Rocky Mountain form, of which Krider's hawk is the eastern analogue; the ranges of the two forms overlap on the Colorado plains; _calurus_ breeds from plains to 12,000 feet; not a few winter in the State. 337d. =Harlan's hawk.= BUTEO BOREALIS HARLANI. Rare winter visitor; one specimen; natural habitat, Gulf States and lower Mississippi Valley. 339b. =Red-bellied hawk.= BUTEO LINEATUS ELEGANS. Rare migrant; Pacific coast species. 342. =Swainson's hawk.= BUTEO SWAINSONI. Common resident; breeds everywhere below 11,000 feet. 347a. =American rough-legged hawk.= ARCHIBUTEO LAGOPUS SANCTI-JOHANNIS. Somewhat common winter resident; arrives from the north in November and remains till March. 348. =Ferruginous rough-leg.= ARCHIBUTEO FERRUGINEUS. Rather common resident; breeds on plains and in mountains; winters mostly on plains and along lower streams.