Table 1.

Family	Body Mass (kg)	Clutch size	Egg volume (l)		Clutch volume (l)
			Observed	Predicted	Observed	Predicted
Megapodiidae	1.16 (0.57)	9.6 (2.6)	0.13 (0.039)	0.0592 (0.034)	1.18 (0.49)	0.167 (0.096)
Cracidae	1.70 (0.90)	2.4 (0.5)	0.12 (0.041)	0.080 (0.049)	0.27 (0.068)	0.23 (0.14)
Meleagrididae	3.61 (0.86)	11.8 (0.4)	0.068 (0.0030)	0.14 (0.047)	0.79 (0.011)	0.41 (0.13)
Tetraonidae	0.72 (0.46)	7.6 (2.4)	0.028 (0.010)	0.041 (0.029)	0.22 (0.10)	0.12 (0.080)
Odontophoridae	0.24 (0.093)	9.6 (4.5)	0.012 (0.0025)	0.017 (0.0083)	0.11 (0.032)	0.048 (0.023)
Phasianidae	0.408 (0.25)	7.6 (6.2)	0.024 (0.0096)	0.026 (0.018)	0.21 (0.26)	0.073 (0.050)
Numididae	1.02 (0.25)	9.8 (3.6)	0.036 (0.0080)	0.053 (0.018)	0.35 (0.15)	0.15 (0.049)

Family means and standard deviations for all families in the Galliformes, with predictions for egg volume and clutch volume based on body mass (bold denotes those predictions greater or less than two standard deviations from the observed mean value).