| Traits | Males | Females | Cohen’s d | ||
| n | x ± sd | n | x ± sd | (95% CI) | |
| Body mass (g) | 38 | 44.86 (3.33) | 24 | 46.08 (3.19) | −0.38 (−0.99; 0.13) |
| Wing length (mm) | 39 | 97.37 (3.46) | 24 | 96.23 (3.33) | 0.34 (−0.17; 0.90) |
| Tail length (mm) | 39 | 92.01 (6.32) | 24 | 93.96 (9.81) | −0.34 (−0.86; 0.24) |
| Tarsus length (mm) | 39 | 30.09 (2.02) | 24 | 29.71 (1.07) | 0.22 (−0.32; 0.58) |
| Tarsus width (mm) | 39 | 2.98 (0.30) | 24 | 2.88 (0.37) | 0.29 (−0.26; 0.81) |
| Beak length (mm) | 39 | 23.01 (4.60) | 24 | 23.23 (4.38) | −0.05 (−0.56; 0.46) |
| Beak height (mm) | 39 | 5.97 (0.31) | 24 | 5.98 (0.39) | −0.05 (−0.63; 0.51) |