3Q0 NORTH AMKRICAN BIRDS. 



Archibutco ferruginous Liriir). 



CALIFORNIA SQUIB££L HAWE. 



Falco ferrugineus, Licii r, licrl. Trans. 1838, p. 42U. Latjojms ferruginciis, Fkaskr, Proc. 

 Zobl. Soc. Loud. 1844, p. 37. Archibulen ferrugineus, Gray, Gen. }i. fol. sp. 3, 1844. 



— Cass. B. of Cal. & lux. 1854, p. 104; Birds N. Am. 1858, 34. — Bo.nap. C'oiisp. 

 Av. p. 18. — SntlOKL. Orn. Syn. I, 41, 1855. — Heek.m. P. K. K. Kept. VII, 31, 1857. 



— Coop. & Suck. P. R. R. Rept. XII, ii, 149, 1860. — Coues, Prod. Orn. Ariz. p. 10, 

 1866 (anatomical notes). — Blaklst. Ibis, III, 1861, 318 (Saskatchewan; eggs). — 

 Fraseu, Pr. Z. S. 1844, 37. — Guay, Hand Li.st, I, 10, 1869. Archibutco regalis, 

 Gray, List B. Brit. Mu.s. p. 39, 1844 ; Gen. B. fol. pi. vi. 



Sp. CiiAR. Adnlt )7!a?e (4-1,71!), Fort Whipple, Arizona, Deo. 2, 1804; Dr. Coues). Ground- 

 color of head and neck white ; each feather with a medial streak of black, these growing 

 broader po.sterioi-ly, and along the upper border of the ear-coverts are so Ijlended as to 

 form an indistinct stripe back from the eye. Entire lower parts (except tibia) and whole 

 under surface of the wing continuous pure white ; breast with a faint tinge of delicate 

 oohraceous ; tibia and tarsus reddish-white, tinged with or inclining to deep ferruginous 

 on upper portion, and wiili nunierous transverse bars of darker ferruginous and blackish; 

 sides of the breast with a very few hair-like shaft-streaks of black; flanks with a few dis- 

 tant, dark ferruginous bars; axillars with two or three cordate spots of ferruginous near 

 ends; feathers of the lining ne.\-t the body, with blended irregularly hastate spots of 

 rufous; under primary coverts shading into cinereous on terminal half, and with obscure 

 broadly hastate spots of a darker shade of the same ; primaries slaty beyond their emargina- 

 tion, deepening gradually toward tlieir tips. Back, scapulars, and lesser and middle wing- 

 coverts fine rufous, each feather with a broad median, longitudinal spot of brownish 

 plumbeous-blaek, these on the back rather exceeding the rufous; longer wing-coverts and 

 secondaries ashy-umber, with very obsolete transverse bands of darker; primary coverts 

 more ashy, and more distinctly banded ; primaries fine chalky cinereous, this lightest on 

 outer four; shafts pure white. Rump nearly uniform brownish-black, — posterior feathers 

 rufous with medial black blotches ; upper tail-coverts snowy white on outer webs, inner 

 webs more rufous; a few concealed blackish transverse spots. Tail pale pearly ash, be- 

 coming white basally, and witli a wash of dilute rufous along the edge of outer webs; 

 inner webs white, with an ashy tinge thrown in longitudinal washes ; outer feathers 

 nearly white, with faint pale ashy longitudinal mottlings ; shafts of tail-feathers pure white. 

 Fourth quill longest; third but little shorter; second very much shorter than fifth; first 

 intermediate between .seventh and eiglith. Wing, 1G.7.T; tail, 9.20; tarsus, 2.95; middle 

 toe, I.3.J. 



"Length, 22.50; extent, 54.50. Iris clear light yellow; cere, edges of commissure, and 

 feet bright yellow ; bill very dark liluish hoi'n ; mouth, purplish flesh-color, livid bluish 

 along edges." 



Adult female (41,720, Fort Whipple; Dr. Coues). .Almost exactly like the male, but 

 black spots on rufous portions of upper parts much restricted, forming oblong spots in 

 the middle of each feather; rump almost entirely rufous, variegated, however, with black. 

 Longitudinal lines on breast more distinct; transverse bars on flanks and alidomcn more 

 numerous; tiliial and tarsal feathers wholly deep rufous or ferruginous, the bars more 

 blackish. Third and fourth quills equal and longest ; second intermediate between fifth 

 and sixth ; first equal to eighth. Wing, 17.25 ; tail, 9.75 ; tarsus, 2.95 ; middle toe, 1.40. 

 "Length, 23.25; extent, 56.50. Iris light ochraceous-brown." 



Yunng femnle (G,883, Los An'gelos, California; Dr. Heermann). General plumage above, 

 grayish-brown ; interscapulars, scapulars, lesser and middh; wing-coverts, and feathers of' 



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