Appendix 2.
Morphological measurements of adult Gyrfalcons.(1)
| Mean (SD, range) | n | P (2) | |
| Culmen (mm) | |||
|---|---|---|---|
| Male | 22.6 (1.3, 20.2–25.3) | 8 | <.001 |
| Female | 25.3 (1.3, 22.9–28.1) | 37 | |
| Wing (3) (cm) | |||
| Male | 36.7 (1.1, 34.5–39.0) | 20 | <.001 |
| Female | 39.3 (1.4, 34.5–41.0) | 40 | |
| Tail (cm) | |||
| Male | 21.3 (1.6, 19.5–24.5) | 11 | <.05 |
| Female | 22.7 (2.1, 21.0–29.0) | 38 | |
| Tarsus (mm) | |||
| Male | 60.9 (4.6, 52.1–68.7) | 21 | NS |
| Female | 62.3 (4.3, 48.9–74.6) | 38 | |
| Toe (4) (mm) | |||
| Male | 55.3 (2.8, 51.0–61.3) | 13 | <.001 |
| Female | 61.0 (3.5, 51.9–66.1) | 22 | |
- (1) North American study skins from the American Museum of Natural History, Field Museum of Natural History, and Museum of Comparative Zoology, measured by NJC.
- (2) Sex differences determined by Pooled (equal variance) T-test.
- (3) Wing chord measured closed and flattened.
- (4) Middle toe measured with talon.
