Table 2.
Variable | Abbreviated | Description |
---|---|---|
Culmen | A | Distance from tip of bill to forehead |
Lower mandible | B | Length of the lower mandible |
Bill tip to nostril | C | Distance between the tip of the bill and the nostril |
Bill plus head | D | Length of bill and head |
Head length | E | Length of head from the base of the bill |
Head width | F | Width of head across the “cheeks” |
Nail length | G | Length of the nail on the bill |
Nail width | H | Width of the nail on the bill |
Bill height | I | Height of the bill at its base |
Bill height nail | J | Height of the bill right behind the nail |
Bill height nostril | K | Height of the bill right in front of the nostril |
Bill width | L | Width of the bill at its base |
Height lower mandible | M | Maximum height of the lower mandible |
Tail | N | Length of tail |
Tarsus | O | Length of the tail |
Toe nail | P | Length of the tarsus |
Teeth | Q | Number of teeth in the upper mandible (one side) |