486 BIRDS OF THE GALAPAGOS ARCHIPELAGO— RIDGWAY. volxix. 



Afhilt male. — Type, collection Dr. G. Baur; Chatham Island, June 13, 

 1891. Above brownish gray changing to light brown on the rump; 

 toj) of head marked with distinct mesial streaks of black (proportionally 

 narrower than those of JN'. macdonaldi) and back with broad mesial 

 spots of dusky (much less intense than those of ^Y. macdonaldi) \ \'\\n\\) 

 and upper tail-coverts (the latter grayish, like back, etc.) with streaks 

 indistinct and mostly concealed; lesser wing-coverts light brownish 

 gray with dusky central spots (mostly concealed); rest of wings dusky, 

 the middle coverts with broad terminal margins of grayish white, 

 slightly tinged with buft'; greater coverts broadly tipped and edged 

 with the same, the edgings more bufty, the tips i)urer white; second- 

 aries broadly edged with light buti'y brown passing into buffy white on 

 terminal margins; ])rimaries, prinuiry coverts, and abila very narrowly 

 edged with grayish white and with broader terminal margins of i)urer 

 white; tail nearly black, becoming brownish slaty basally, the feathers 

 indistinctly but rather broadly edged with brownish gray; outermost 

 feather edged with white, and with a large white space (about O.S.") 

 long) terminating the inner v;eb; next featlier with the white sj)ace 

 about 0..S0 long, the next with it about 0.(!0, and so on, decreasing in 

 size and distinctness of detinition to the tifth, where it forms a narrow 

 mark along tlie edge of the inner web near tip. A rather indistinct 

 superciliary stripe of dull grayish white; lores, suborbital region, and 

 ear-coverts blackish, the last streaked with light brownish gray. 

 Under parts, including malar region, butty white; along each side of 

 throat a narrow streak of dusky; chest faintly shaded with grayish, 

 forming an indistinct broad band, within which many of the feathers 

 have a small dark brownish gray cordate central si)ot; sides of breast 

 similarly colored, forming two lateral patches nearly meeting on the 

 median line, but the dark spots larger and more distinct; sides and 

 flanks with broad longitudinal streaks of dusky, most intense on 

 flanks. Kill brownish black, becoming pale brownish on basal third 

 of mandible; legs and feet black; "iris dull yellow.'' Length (skin). 

 8.60; wing, 4.40; tail, 3.90; exposed culmen, (KST; bill to rictus, 1.25: 

 tarsus, 1.50; middle toe, 0.83. 



Yo?rw<7.— No. 115933, U.S.N.M.; Chatham Island, April 5, 1S88; C. H. 

 Townsend. Forehead and crown dark brownish gray, uniform ante- 

 riorly but posteriorly streaked with pale brownish gray, the feathers of 

 the hinder crown and occiput being this color, with broad, dusky grayish 

 mesial streaks; nape and hind neck very pale brownish gray, indis- 

 tinctly mottled with darker tips to the feathers; back and scapulars 

 bufly brown with large central longitudinal si)ots of dusky; lower back 

 and rump bufty cinnamon, broadly but indistinctly streaked with dusky 

 toward upper tail-coverts, the latter nearly uniform grayish tinged with 

 cinnamon on edges ; wings dusky (nearly black on remiges) ; lesser 

 coverts broadly nuirgincd with bufty brownish gray ; middle coverts 

 broadly tip])ed with pale buft"; greater coverts broadly tipped with pale 

 buft' and broadly edged with deep butf; secondaries broadly margined 



