Table 3.
Basic statistics.
| Variable | Min | Max | Range | Mean | SD | Median |
|---|---|---|---|---|---|---|
| Culmen | 45.2 | 67.2 | 22.0 | 57.5 | 4.4 | 57.7 |
| Lower mandible | 42.9 | 65.9 | 23.0 | 55.3 | 3.6 | 55.9 |
| Bill tip to nostril | 25.1 | 39.1 | 14.0 | 30.5 | 2.0 | 30.6 |
| Bill plus head | 96.0 | 129.0 | 33.0 | 115.4 | 6.4 | 116.0 |
| Head length | 57.8 | 72.8 | 15.0 | 65.5 | 2.8 | 65.4 |
| Head width | 26.7 | 43.5 | 16.8 | 38.0 | 2.1 | 38.2 |
| Nail length | 12.5 | 21.3 | 8.8 | 16.1 | 1.3 | 16.1 |
| Nail width | 10.0 | 16.3 | 6.3 | 13.7 | 0.9 | 13.8 |
| Bill height | 27.0 | 35.4 | 8.4 | 30.8 | 1.6 | 30.9 |
| Bill height nail | 9.5 | 15.0 | 5.5 | 12.2 | 1.0 | 12.2 |
| Bill height nostril | 14.0 | 21.7 | 7.7 | 18.0 | 1.5 | 18.1 |
| Bill width | 20.2 | 29.8 | 9.6 | 26.6 | 1.3 | 26.7 |
| Height lower mandible | 6.6 | 10.4 | 3.8 | 8.7 | 0.9 | 8.7 |
| Tail | 90.0 | 152.5 | 62.5 | 123.3 | 11.3 | 124.8 |
| Tarsus | 60.4 | 89.1 | 28.7 | 77.1 | 4.9 | 77.1 |
| Toe nail | 64.9 | 104.0 | 39.1 | 86.2 | 6.9 | 86.6 |
| Teeth (N) | 20 | 30 | 10 | 23.7 | − | 23.0 |
All measurements in mm except the number of “Teeth” on the upper mandible (integer). N = 262 for all variables. Min = minimum value, Max = maximum value, Range = Max − Min, SD = standard deviation.