ICTERIDAE 
Icterus 
a, Tail unicolored, black, except at concealed 
base . 
b> Head, all round, uniform black or chestnut, 
c. Back and scapulars uniform black. 
Underparts of body and rump neither 
chestnut nor rufous-tawny. 
e. Wings with white markings. 
maculi-alatus <$ 2 
ee. Wings without white markings. 
f* Breast yellow or orange 
wagleri d 2 
ff. Breast black 
prosthemelas d 2 
dd♦ Underparts of body and rump chestnut. 
spurius d 
ee• Back and scapulars yellowish olive-green 
or olive yellow. 
prosthemelas imm. 
Bb* Head orange, yellow, or olive green, with 
black throat and capistrum* 
jc 1 . Back and scapulars uniform black 
d*. Breast spotted with black (at least 
laterally) 
pectoralis d 2 
dd . Breast not spotted 
gularis d 2 
cc. Back and scapulars not uniform black, 
jd. Forehead and at least anterior part of 
auricular region black; wing-coverts 
witnout any white. 
Sjl Barger, wing 86-112; general color in¬ 
cluding back orange-ye How. Chrysater 
©©.* Smaller, wing less than 86; general 
color lemon-ye How, or pale olive- 
yellow below, more olivaceous on back. 
prosthemelas imm. 
