Table 2. Comparison of bird families used in different analyses.
| Family | Locomotory habit |
|---|---|
| Tinamidae | Avoid flight |
| Apterygidae | Flightless |
| Anhimidae | Flighted |
| Cracidae | Flighted |
| Numinidae | Flighted |
| Phasianidae | Avoid flight |
| Tetraonidae | Flighted |
| Turnicidae | Avoid flight |
| Pteroclidae | Flighted |
| Columbidae | Flighted |
Notes:
Families used by Campbell & Marcus (1992) in their analysis of heavy-bodied terrestrial birds and a categorization of their locomotory habits. Red indicates the families that are not represented in Field et al. (2013).