13. Falco doliatus. Shaw, Gen. Zool., Aves., VII. p. 77. (1809.)

“Length ten inches; bill violet; cere, irides, and legs, yellow; tail

marked with whitish bars more apparent beneath than above; under

tail-coverts and flanks brown, with two or three round white spots on

each side of the shaft; thighs ferruginous, with black shafts.

Inhabits Carolina, observed by Bosc.” (Shaw, as above.)

Probably the young of either _Hypotriorchis columbarius_ or _Accipiter

fuscus_, but quite impossible to identify from such a meagre

description.

14. Falco glaucus. Bartram, Travels, p. 290. (1791.) Barton, Fragments

of the Nat. Hist. of Penna., p. 11. (1799.)

“The sharp-winged hawk, of a pale sky-blue color, the top of the wings

black.” (Bartram, as above.)

This insufficient description has been supposed to be intended for the

adult of the Marsh Hawk (_Circus hudsonius_), but Barton (as above)

applies it to the _Nauclerus furcatus_. It is probably one or the other.

Illustrations of the Birds of California, Texas, Oregon, British and Russian America · 第 77 / 181 题