Next / Previous / Contents / Shipman's homepage

4.7. How-codes

These codes are used to record how the bander determined age or sex.

S Skull ossification.
C Cloacal protuberance.
B Brood patch.
J Juvenal plumage.
L Molt limit.
P Plumage.
M Molt.
F Feather wear.
I Mouth or bill.
E Eye color.
W Wing length.
T Tail length.
O Other. A note is required on the back of the sheet when this code is used. The compiler does not enforce this requirement.