Hypsipetes camiguinensis McGregor, Phil. Jour. Sci. (1907), 2,
sec. A, 347.
Camiguin N. (Worcester, McGregor).
Diagnosis.--Similar to H. fugensis and to H. batanensis but larger;
bill and tail longer; flanks less rufescent. Male, type: Length in
flesh, 295; wing, 136; tail, 124; culmen from base, 33; bill from
anterior margin of nostril, 21; tarsus, 25.
The specimens of Hypsipetes obtained in Camiguin Island are in such
poor condition that it is impossible to give color characters, but I
believe adults in good plumage will be found to differ considerably
from both H. fugensis and H. batanensis.
Genus IOLE Blyth, 1844.
This genus differs from Hypsipetes in having longer rictal bristles,
the longest being decidedly more than one-half as long as the tarsus,
and in having the nuchal hairs more strongly developed. The three
yellow plumaged species, Iole striaticeps, everetti, and haynaldi,
approach Criniger (=Trichophorus) both in color and in the development
of nuchal hairs, but in the latter genus the bill is relatively
shorter and the culmen is more curved.
Species.
a1. Under parts bright yellow or strongly tinged with yellow; nuchal
hairs longer.
b1. Above olive-brown with whitish shaft-streaks; below ashy white
with a strong tinge of yellow. ... striaticeps (p. 505)
b2. Above olive-yellow with darker shaft-streaks; under parts mostly
bright yellow.
c1. Larger; above brighter and clearer olive-yellow; under parts
brighter. ... everetti (p. 506)
c2. Smaller; above duller olive-yellow; under parts not so
bright. ... haynaldi (p. 506)
a2. Under and upper parts neither yellow nor tinged with yellow;
general color brown or gray.
b1. Chin and throat reddish brown or gray, narrowly streaked with
white or without streaks; smaller, culmen from base usually less
than 28 mm.
c1. No white shaft-lines on chin and throat. ... rufigularis
(p. 507)
c2. White shaft-lines present on chin and throat.
d1. Chin and throat rufous-brown; shaft-lines wider.
e1. Smaller; chin and throat slightly darker. ... gularis
(p. 507)
e2. Larger; chin and throat slightly paler. ... guimarasensis
(p. 508)
d2. Chin and throat pale rufescent brown; shaft-lines much
narrower and less conspicuous. ... mindorensis (p. 509)
b2. Chin and throat gray with wide streaks of white, or chin nearly
all white; larger, culmen from base usually more than 30 mm.
c1. Top of head uniform seal-brown without lighter margins to the
feathers; wing of male, about 135 mm. ... siquijorensis (p. 510)
c2. Top of head lighter brown or dull olive-brown; feathers on
forehead tipped with slate-gray; wing shorter.
d1. Top of head lighter; feathers on nape tipped with ashy or
slate-gray; wing, about 125 mm.; tail, 115. ... cinereiceps
(p. 511)
d2. Top of head darker; feathers on nape with no gray tips;
wing, about 120 mm.; tail, 105. ... monticola (p. 511)