PLANESTICUS. 545 
527. PLANESTICUS KELLERI (Mearns). 
KELLER’S BLACK THRUSH. 
Merula kelleri MEARNS, Proce. Biol. Soc. Wash. (1905), 18, 6; McGregor 
and WoRCESTER, Hand-List (1906), 83. 
P6-lo, Bagobo of Mount Apo. 
Mindanao (Jearns, Goodfellow). 
Adult.—This species is almost exactly like P. thomassoni in colors, 
but is considerably smaller in size. A male collected by Mearns measures: 
Length, 246; wing, 110; tail, 94; culmen from base, 21; bill from 
nostril, 13; tarsus, 31. 
A female, wing, 110; tail, 89; culmen from base, 20; bill from nostril, 
12; tarsus, 30. 
528. PLANEST!ICUS NIGRORUM (Grant). 
NEGROS BLACK THRUSH. 
Turdus nigrorum GRANT, This (1896), 544; GRANT and WHITEHEAD, Ibis 
(1898), 238, pl. 5, figs. 8 and 9 (eggs); WHITEHEAD, Ibis (1899), 
213 (nest). 
Merula nigrorum SHARPE, Hand-List (1903), 4, 119; OATES and REID, Cat. 
Birds’ Eggs (1905), 4, pl. 5, fig. 18; McGrrcor and WorcrEsTER, Hand- 
List (1906), 83. 
Negros (Whitehead). 
“Adult male and female——Above rich dark umber, darkest on the top 
of the head; wings and tail brownish black; chin, throat, and chest pale 
sooty brown, rather lighter on the breast, flanks, and belly; a band of 
white feathers across the vent; under tail-coverts dark brown, with pale 
whitish-brown tips. Bill and feet yellow. Male: Length, 241; wing, 
124; tail, 96.5; tarsus, 34. Female: Length, 223.5; wing, 119; tail, 91; 
tarsus, 31.5. 
“An immature male has the upper parts much like those of the adult, 
but the feathers of the back have indistinct margins of darker color, the 
chin and middle of the throat are buff, and the breast and under parts 
spotted with black and washed with rufous, shading into tawny buff on 
the middle of the belly. 
“The Negros blackbird is resident on the voleano of Canloon at an 
altitude of from 1,600 to 2,000 meters, and both young birds and eggs 
were obtained.” (Grant.) 
A nest containing two “much incubated” eges was taken by White- 
head on April 12, 1896, and another nest with two young birds was found 
on the 2ist of the same month. The eggs are described as follows: 
“Shape ovate. Ground-color very pale’ green; one egg very thickly 
mottled with brick-red, almost hiding the ground-color; the second 
blotched toward the larger end and more thinly marked over the rest of 
