KEY TO PINTAIL WINGS 
Scapulars: 
(a) Vermiculated ------------------------------------- Males 
(b) 
Not vermiculated -----<-----------------+---------- 2 
Tertials: 
(a) Long, narrow; pearly gray with wide longi- 
tudinal black stripe surrounding shaft ----------- Males 
(b) Grayish or brownish, without black longi- 
tudinal stripe -----9--e sermon etre rn nen nnn ren ten- 3 
Secondaries: 
(a) Speculum all or mostly iridescent green and/or 
most distal secondary with wide black marginal 
stripe on outer web but pale longitudinal stripe 
between this margin and the shaft ---------------- Males 
(b) Speculum dull non-iridescent bronze occasionally 
partly dull non-iridescent green, most distal second- 
ary brownish without black marginal stripe (may 
show dark brown or pale stripe near shaft) -------- Females 
Age Determination of Males 
Tertial Coverts: 
(a) Conspicuously light edged ------------------------ Immature 
(b) Not light edged ---------------------------------- 2 
Tertials: 
(a) One or more not black edged, one or more conspicu- 
ously frayed, new short black edged tertials grow- 
ing after December lst. -+-<---------+---<-------- Immature 
(b) All tertials edged black ------------------------- 3 
Middle Coverts: 
(a) 
(b) 
Conspicuously light edged but showing no light 
flecking -------------- 22-22 een ne ne en ee nnn nae Immature 
Usually a smooth solid unedged color, rarely 
slightly light edged, but showing light flecking - Adult 
21 
