ATHOPYGA. 645 
the larger end, a few fine hair-like scribblings crossing the shell trans- 
versely. Measurements 17 mm. by 12 mm.” 
Another set of two eggs, collected by Whitehead in Negros, April 15, 
1896, are described as having the “Ground-color as in the above, but the 
shell heavily clouded with rich dark terra-cotta and darker scribblings 
and specks of the same color. Measurements 16 mm. by 12 mm.” 
“This sunbird nests in old forest. The nest is generally found sus- 
pended among forest débris in the vicinity of some huge tree-trunks only 
a few feet from the ground. It is well hidden by the undergrowth. 
“The nest is a well-woven bag-shaped structure, with a roofed entrance 
at the side. It is principally constructed of fine grass, rootlets, palm 
fiber, and fragments of dead leaves woven together with spiders’ webs 
and lined with fine dead grass tops and seeds. The nest found by 
Professor Steere was suspended from a root under the overhanging bank 
of a river, and looked like a tuft of rubbish left by high water.” (Grant 
and Whitehead.) 
654. AATHOPYGA BOLTONI Mearns. 
BOLTON’S SUNBIRD. 
Athopyga boltoni MEARNS, Proc. Biol. Soc. Wash. (1905), 18, 4; McGrecor 
and WorcEstTrR, Hand-List (1906), 98; Grant, Ibis (1906), 472. 
Kah-poi-yah-poi-yuh, or kah-pue-yoo-ahn, Bagobo of Mount Apo. 
Mindanao (Mearns, Goodfellow). ; 
“Adult male.—Entire head and neck all round, except middle of 
chin and throat, slate-gray, faintly washed with french-green, the feathers 
of the forehead narrowly edged with metallic french-green; upper back 
gray, strongly washed with oil-green; lower back olive-green; rump 
citron-yellow ; wings brownish black with wing-coverts and outer webs 
of secondaries olive-green; under wing-coverts and edges of inner webs 
of primaries and secondaries white; tail with longest feather 12 mm. 
longer than the next, 25 mm. longer than the outer rectrix; middle pair 
of tail-feathers entirely metallic french-green, the remaining rectrices 
being green-black, broadly tipped with gray on the outer and white on 
the inner webs; under parts with a median stripe of citron-yellow ex- 
tending from bill to chest, broadening posteriorly and minutely mixed 
with orpiment-orange at upper margin of chest; flanks, abdomen, and 
under tail-coverts yellow; chest orange; pectoral tufts chinese-orange. 
Tris red; bill black faintly tipped with horn-color; feet and claws black, 
except the under side of toes which are yellowish. Length, 130; alar 
expanse, 180; wing, 57; tail, 55; culmen (chord), 21; tarsus, 18; middle 
toe with claw, 14. 
“Adult female-—Head, neck all round, and chest slate-gray; upper 
parts, including upper wing-coverts and exposed outer webs of wing- 
quills, olive-yellow; tail similar to that of male, but shorter and duller, 
