640 BIRDS OF THE GALAPAGOS ARCHIPELAGO— BIDGWAY. vouxix. 



Adult male {hrecdiufi plumage). — Xo. 115067, U.S.N.M. ; Dahyinple 

 Eoc'k, Chatbam Island, Galapagos, Ai)ril 6,18885 \j. ^. ^. Alhatvosn. 

 A white patch at base of upper mandible, crossing anterior portion of 

 Ibrelioad, and averaging about 0.3.") of an inch in width;' a very small 

 M'liite si)(>t on the apex of the malar region; rest of head with upper 

 half of neck uniform slate color,^ this rather abruptly terminated on 

 the lore neck, but ])osteriorly fading gradually into the lighter gray of 

 the hind neck; lower neck, all round. i)ale gray,^ below extending 

 over the sides of the breast, and fading gradually into the ])ure white 

 of the middle of the breast and other under parts, but above gradu- 

 ally deepening into the uniform medium gray^ which covers the back, 

 scapulars, wing-coverts (except the lower greater and lliose along the 

 margin (»f the wing), tertials, and rump; upper tail coverts and tail 

 entirely pure white, this abruptly contrasted with tlie deep gray of the 

 rump. I*]xterior scai>ulars broadly and abruptly margined witli pure 

 white, forming a continuous and C()nsi)icuous narrow stripe along each 

 side of the dorsal region; marginal wing-coverts, aluhe, lower greater 

 coverts, and ni)]>er secondaries pure white ; lower secondaries with outer 

 webs Aery pale gray ; four innermost primaries very pale gmj, narrowly 

 margined with white; sixth sinnlar, but with a blackish blotch near the 

 tip, extending (juite across the inner web and for some distance along 

 its edge; fifth (piill mostly pale gray, with dusky shaft, the terminal 

 portion (for about 1.30 inches along the shaft, black, this color much 

 more extensive, however, along both edges), but with a small white 

 apical spot; lourth quill Mith black much more extensive (extending 

 nearly 5 inches from tip on outer web or 1.75 to nearest point on the 

 inner), with still smaller white apical spot, the rest of the inner web 

 white, becoming graj' next to the shaft; third quill with black extend- 

 ing about 0.80 from the tip, or almost to the coverts on outer web, and 

 2 to nearest point on the inner, the white portion separated from 

 the shaft by a dusky stripe; second quill similar, but with the whole 

 exposed ])ortion of outer web black, but the black on the inner web a lit- 

 tle more restricted; tirst quill similar, but black near tip of inner web 

 more restricted, though the stripe along the shaft is broader. (The 

 three outermost quills have the white ai)ical spots reduced to minute 

 specks, which would entirely disappear with a very slight wearing of 

 the feathers.) Bill black, with a little less than the terminal third (or 

 for about 0.70 of an inch from the tip) yellowish horn -white or pale olive- 

 butt'; rictus and broad tumid eyelids orange-red; iris dai'k brown; legs 

 and feet deep red; claws deep bhu-k. Length (mounted specimen), 

 about 1*0; wing, 10.25; tail, 7.40 (forked for 2.50); exposed culmen, 1.00; 

 de[)th of bill at angle, 0.50, at base of culmen, 0.68; tarsus, 2; middle 

 toe, 1.80. 



' This white patch does not extend as far tlown as the cd<je of the nuindihie 

 '^ Corresjiondiiij^ to the slate color (No. 4, pi. 11) of my ''Nomenclature of Colors," 

 but slij^htly browner. 



^Varying from tints 8-9, pi. 11, of my " Nomenclature of Colors." 

 ■•Much like tint 7, pl.ii, of my "Nomenclature of Colors," 



