598 PATAGONIAN EXPEDITIONS: ZOOLOGY. 



First breeding plumage of female. — P. U. O. C. 7950. Rio Chico de 

 Santa Cruz, Patagonia, 15 March, 1898. A. E. Colburn. Or. No. 204. 



Head : Forehead and lores whitish. Crown deep brown, broadly edged 

 with bright cinnamon. A dull, fulvous supraciliary stripe from the whitish 

 forehead to the ear-coverts ; the ear-coverts streaked dull brown, cinna- 

 mon and light fulvous ; facial ruff light fulvous, almost white, streaked 

 with mid-markings of dark, blackish brown on each feather; occiput much 

 like crown, with a prevailing cinnamon tone. 



Back: Deep seal-brown, most of the feathers edged narrowly with 

 bright cinnamon, which color becomes conspicuous on the feathers of the 

 lower back and rump ; upper tail-coverts white, some immaculate, and 

 others with faint subterminal cinnamon markings, generally arrow-shaped. 



Tail: Like that of the adult female described (p. 596). 



Wings : The pattern as described in the adult female (p. 596) but all the 

 coverts, except the scapulars, with heavy cinnamon edgings and markings ; 

 the quills much as in the adult female but the slaty blue prevailing 

 chiefly on the primaries, ashy barring on a deep brown ground char- 

 acterizing the secondaries ; below, the wings are more narrowly barred 

 with deep brown than in the adult and the cinnamon wash is strong 

 on the inner web of all the quills, except the first primary, and here it only 

 occupies the region near the base of the feather. 



Lower parts : The chin dirty white, with hair lines of deep brown, or 

 black, each feather of the throat proper deep brown, with a broad edging 

 of fulvous white, giving the whole a streaked look ; the breast and chest 

 broadly barred and marked with chocolate-brown, and white much shaded 

 into cinnamon, the whole appearing mottled and suffused ; the rest of the 

 under parts, including the legs, thighs, under tail-coverts, under wing- 

 coverts and axillaries are patterned much as in the adult (p. 597), but all 

 the bars are more imperfect and the clear white is everywhere suffused 

 with a strong cinnamon wash, while the barring on the sides is very 

 strong and broad and the cinnamon markings on the under wing-coverts 

 are often arrow-shaped or tear-shaped in the white ground of the feathers. 

 Birds in this pJiase of plumage are not streaked, but barred, on the lower 

 parts, where that pattern prevails in the fully aditlt female. 



Feet, iris and bill as in the adult. 



Immature birds; young of the year. — Male. — P. U. O. C. 7951. Rio 

 Chico de Santa Cruz, Patagonia, 8 March, 1898. A. E. Colburn, col- 

 lector. Or. No. 293. 



