Nyctale acadica, Bonap.
SAW-WHET OWL; WHITE-FRONTED OWL; KIRTLAND’S OWL.
Strix acadica, Gmel. Syst. Nat. p. 296, 1789.—Daud. Tr. Orn. II, 206, 1800.—Vieill. Ois. Am. Sept. I, 49, 1807.—Aud. Birds Am. pl. cxcix, 1831; Orn. Biog. V, 397.—Rich. & Swains. F. B. A. II, 97, 1831.—Bonap. Ann. Lyc. N. Y. II, pp. 38, 436; Isis, 1832, p. 1140.—Jard. (Wils.) Am. Orn. II, 66.—Naum. Nat. Vög. Deutschl. (ed. Nov.) I, 434, pl. xliii, figs. 1 & 2.—Peab. Birds Mass. p. 90.—Nutt. Man. p. 137, 1833. Nyctale acadica, Bonap. List, p. 7, 1838; Consp. Av. p. 44.—Gray, Gen. B. fol. App. p. 3, 1844.—Kaup, Monog. Strig. Cont. Orn. 1852, p. 104.—Ib. Tr. Zoöl. Soc. IV, 1859, 206.—Strickl. Orn. Syn. I, 176, 1855.—Newb. P. R. R. Rept. VI, 77, 1857.—Cass. Birds N. Am. 1858, 58.—Coop. & Suck. P. R. R. Rept. XII, II, 156, 1860.—Coues, Prod. B. Ariz. 14, 1866.—Gray, Hand List, I, 1869, 51.—Lord, Pr. R. A. I. IV, III (Brit. Columb.).—Ridgway, Am. Nat. VI, May, 1872, 285.—Coues, Key, 1872, 206.—Gray, Hand List, I, 51, 1869. Scotophilus acadicus, Swains. Classif. Birds II, 217, 1837. Strix passerina, Penn. Arct. Zoöl. p. 236, sp. 126, 1785.—Forst. Phil. Transl. LXII, 385.—Wils. Am. Orn. pl. xxxiv, f. 1, 1808. Ulula passerina, James. (Wils.), Am. Orn. I, 159, 1831. Strix acadiensis, Lath. Ind. Orn. p. 65, 1790. S. albifrons, Shaw, Nat. Misc. V, pl. clxxi, 1794; Zoöl. VII, 238, 1809.—Lath. Orn. Supp. p. 14. Bubo albifrons, Vieill. Ois. Am. Sept. I, 54, 1807. Scops albifrons, Steph. Zoöl. XIII, II, 51. Nyctale albifrons, Cass. Birds Cal. & Tex. 187, 1854.—Bonap. Consp. Av. p. 54.—Cass. Birds N. Am. 1858, 57.—Gray, Hand List, I, 52, 1869. Strix frontalis, Licht. Abh. Ak. Berl. 1838, 430. Nyctale kirtlandi, Hoy, Proc. Ac. Nat. Sc. Phil. VI, 210, 1852. S. phalænoides, Daud. Tr. Orn. II, 206, 1800.—Lath. Ind. Orn. Supp. p. 16, 1802; Syn. Supp. II, 66; Gen. Hist. I, 372, 1828. Athene phalænoides, Gray, Gen. B. fol. sp. 43, 1844. Athene wilsoni, Boie, Isis, 1828, 315.
Sp. Char. Adult (♀, 120,044, Washington, D. C., Feb., 1859; C. Drexler). Upper surface plain soft reddish-olive, almost exactly as in N. richardsoni; forehead, anterior part of the crown, and the facial circle, with each feather with a short medial line of white; feathers of the neck white beneath the surface, forming a collar of blotches; lower webs of scapulars white bordered with brown; wing-coverts with a few rounded white spots; alula with the outer feathers broadly edged with white. Primary coverts and secondaries perfectly plain; five outer primaries with semi-rounded white spots on the outer webs, these decreasing toward the ends of the feathers, leaving but about four series well defined. Tail crossed with three widely separated narrow bands of white, formed of spots not touching the shaft on either web; the last band is terminal. “Eyebrow” and sides of the throat white; lores with a blackish suffusion, this more concentrated around the eye; face dirty white, feathers indistinctly edged with brownish, causing an obsoletely streaked appearance; the facial circle in its extension across the throat is converted into reddish-umber spots. Lower parts, generally, silky-white, becoming fine ochraceous on the tibiæ and tarsi; sides of the breast like the back, but of a more reddish or burnt-sienna tint; sides and flanks with longitudinal daubs of the same; jugulum, abdomen, lower tail-coverts, tarsi, and tibiæ, immaculate. Wing formula, 4–3=5–1=8. Wing, 5.40; tail, 2.80; culmen, .50; tarsus, .80; middle toe, .60.
Seven specimens before me vary from, wing, 5.25 to 5.80; tail, 2.60 to 3.00 (♀). The largest specimen is 12,053 (♀, Fort Tejon, California; J. Xantus). This differs from the specimen described in whiter face, more conspicuous white streaks on forehead, smaller, less numerous, red spots below, and in having a fourth white band on the tail; this, however, is very inconspicuous. 32,301 (Moose Factory; J. McKenzie), 9,152 (Fort Vancouver, February; Dr. J. G. Cooper), and 11,793 (Simiahmoo, October; Dr. C. B. Kennedy) are exactly like the type. There are no authentic males before me, though only two are marked as females; the extremes of the series probably represent the sexual discrepancy in size.
Young (♂, 12,814, Racine, Wisconsin, July, 1859; Dr. R. P. Hoy). Upper surface continuous plain dark sepia-olive; face darker, approaching fuliginous-vandyke,—perfectly uniform; around the edge of the forehead, a few shaft-lines of white; scapulars with a concealed spot of pale ochraceous on lower web; lower feathers of wing-coverts with a few white spots; outer feather of the alula scalloped with white; primary coverts perfectly plain; five outer primaries with white spots on outer webs, these diminishing toward the end of the feathers, leaving only two or three series well defined; tail darker than the wings, with three narrow bands composed of white spots, these not touching the shaft on either web. “Eyebrows” immaculate white; lores more dusky; face and eyelids dark vandyke-brown; sides of the chin white. Throat and whole breast like the back, but the latter paler medially, becoming here more fulvous; rest of the lower parts plain fulvous-ochraceous, growing gradually paler posteriorly,—immaculate. Lining of the wing plain dull white; under surface of primaries with dusky prevailing, but this crossed by bands of large whitish spots; the three outer feathers, however, present a nearly uniformly dusky aspect, being varied only basally. Wing formula, 3, 4–2=5 6–7, 1. Wing, 5.50; tail, 2.80; culmen, .45; tarsus, .80; middle toe, .65.
Hab. North America generally. Cold temperate portions in the breeding-season, migrating southward in winter. Mexico (Oaxaca, Sclater, P. Z. S. 1858, 295); California (Dr. Cooper); Cantonment Burgwyn, New Mexico (Dr. Anderson); Washington Territory (Dr. Kennerly).
Nyctale acadica. Young.