Table 1.

Pearson's correlations among measured nestling traits at 6 and 14 days of age in the cross-fostering experiment. (Probability values are ^*p<0.05; ^**p<0.01; n.s., non-significant (N=56 (age 6), N=54 (age 14)).)

age 6	body mass	tarsus l	wing l	bill l
tarsus length	0.877**
wing length	0.827**	0.918**
bill length	0.539**	0.671**	0.684**
gape width	0.335*	0.348*	0.167	0.215

age 14	body mass	tarsus l	wing l	bill l
tarsus length	0.240n.s.
wing length	0.603**	0.352**
bill length	0.466**	0.179n.s.	0.576**
gape width	−0.127n.s.	−0.198n.s.	−0.486**	−0.279*