Table 3:

Effects on growth, begging, and body mass of nestlings, and on parental provisioning

Nestling growth, days 2−5	F	df	P
Food treatment	2.48	2, 198	.086
Corticosterone treatment	.01	2, 154	.985
Nestling age	3123.94	1, 153	< .001
Food × age	5.71	2, 153	.004
Corticosterone × age	.14	2, 153	.874
Hatching date	7.83	1, 222	.006
Brood size	.07	1, 209	.790
Nestling begginga, days 4/5 and 7
Food treatment	.13	2, 171	.875
Nestling age	1.0	1, 146	.289
Food × age	18.95	2, 147	< .001
Hatching date	14.41	1, 196	< .001
Parental food deliveries, days 4/5 and 7
Food treatment	.22	2, 159	.800
Nestling age	13.8	1, 158	< .001
Food × age	7.69	2, 158	< .001
Hatching date	24.64	1, 177	< .001
Brood size	11.8	1, 162	< .001
Nestling prefledging mass, day 11
Food treatment	5.77	2, 137	.004
Hatching date	5.45	1, 137	.021
Brood size	.05	1, 137	.828
Nestling tarsus length	14.55	1, 137	< .001

^aBegging assessed as the number of vocalizations per nestling per hr