Sex Codes and How Sexed Codes
Sex Codes
| NUMERIC CODE |
ALPHA ABBREVIATION |
DEFINITION |
|---|---|---|
| 0 | U | Unknown |
| 4 | M | Male |
| 5 | F | Female |
| 6 | m | Male, sexed upon recapture |
| 7 | f | Female, sexed upon recapture |
How Sexed Codes
| CODE | DESCRIPTION |
|---|---|
| 0 | cloacal examination (waterfowl only) |
| 1 | adult plumage |
| 2 | juvenal plumage |
| 3 | eye color |
| B | brood patch |
| C | cloacal protuberance |
| D | DNA/chromosome analysis |
| E | egg in oviduct |
| L | laparotomy/laparoscopy |
| M | mating/copulation |
| O | behavioral observation not including copulation |
| T | tail length |
| W | wing chord |
| X | Not attempted |
| Y | culmen |
| Z | multiple measurements |

