Table 1.
Morphological and biological characteristics (FS≥100=large, FS<100=small) (Juniper and Parr, 1998)
| Weight (g) | Length (cm) | Habitat | Breeding season | Diet | Flock size | Clutch size | |
| Cacatua (Cacatua) alba | 650 | 45 | Forest | January–October | Omnivorous | Small | 2 |
| C (Cacatua) moluccensis | 850 | 45 | Forest | June–August | Omnivorous | Small | 2 |
| C (Cacatua) galerita galerita | 600 | 45 | Various | Various | Semivorous | Large | 3 |
| C (Cacatua) galerita eleonora | 500 | 40 | Various | Various | Semivorous | Large | 3 |
| C (Lophochroa) leadbeateri | 400 | 40 | Forest | August–December | Semivorous | Small | 2–4 |
| C (Licmetis) sanguinea | 450 | 35 | Various | Various | Omnivorous | Large | 2–3 |
| C (Licmetis) tenuirostris | 650 | 40 | Various | July–December | Omnivorous | Large | 2–4 |
| C (Licmetis) ducorpsii | 350 | 35 | Various | Unknown | Omnivorous | Small | Unknown |
| Eolophus roseicapillus | 350 | 35 | Various | August–October | Semivorous | Large | 2–6 |
FS, flock size.