Table 2.
Percentage of the bill length pitted and numbers of sensory pits in the Apteryx bill-tip and sensory pad. Data are presented as mean ± SD. Percentages are rounded to one decimal place, number of pits are rounded to the nearest whole number
| Species | n | % bill pitted | Sensory pad length as % bill length | Number of pits (pre-maxilla) | Number of pits (mandible) | Total number of pits | % of pits found in sensory pad |
|---|---|---|---|---|---|---|---|
| A. australis | 5 | 13.1% ± 0.9% | 3.6% ± 0.4% | 175 ± 31 | 140 ± 11 | 315 ± 23 | 24.9% ± 4.4% |
| A. haastii | 3 | 12.8% ± 2.7% | 3.6% ± 0.3% | 149 ± 19 | 118 ± 6 | 268 ± 17 | 26.1% ± 2.8% |
| A. mantelli | 9 | 12.1% ± 2.2% | 3.7% ± 0.6% | 125 ± 23 | 144 ± 34 | 269 ± 55 | 19.5% ± 3.4% |
| A. owenii | 3 | 12.1% ± 2.3% | 3.8% ± 0.1% | 122 ± 18 | 118 ± 20 | 240 ± 3 | 22.8% ± 5.9% |
| A. rowi | 2 | 13.2% ± 1.6% | 3.6% ± 0.2% | 204 ± 3 | 203 ± 11 | 407 ± 8 | 22.1% ± 1.5% |
| Averages/total n | 22 | 12.5% ± 1.8% | 3.7% ± 0.4% | 146 ± 35 | 142 ± 32 | 288 ± 58 | 22.3% ± 4.4% |