358. Richardson's merlin. Falco richardsonii. Rare summer resident; not uncommon in migration; naturalists not quite sure that it breeds in the State; has been taken in summer at an altitude of 11,000 feet.
360. American sparrow hawk. Falco sparverius. Abundant resident; the most common hawk from the plains to 11,000 feet; some winter in State; breeds throughout its range.
360a. Desert sparrow hawk. Falco sparverius deserticolus. Resident, though rare; taken in Middle and South Parks.
364. American osprey. Pandion haliaëtus carolinensis. Summer resident; not uncommon locally; breeds as high as 9,000 feet; has been taken in fall at an altitude of 10,500 feet.
365. American barn owl. Strix pratincola. Resident; quite rare; a southern species rarely coming so far north as Colorado.
366. American long-eared owl. Asio wilsonianus. Common resident; winters from plains to 10,000 feet; breeds from plains to 11,000 feet; eggs laid early in April.
367. Short-eared owl. Asio accipitrinus. Resident, but not common; highest record 9,500 feet.
368. Barred owl. Syrnium nebulosum. Resident; few records; one breeding pair found in the northeastern part of the State.
369. Spotted owl. Syrnium occidentale. Resident; not common; a little doubt as to its identity; but Mr. Aiken vouches for its presence in the State.
371. Richardson's owl. Nyctala tengmalmi richardsoni. Rare winter visitor; a northern species.