Table 2.

Proportions of variance accounted for (R²), discounting rate parameters (k in s⁻¹ units), and root mean square error (RMSE) for the 16- and 32-pellet phases for each pigeon.

Pigeon	Amount	R 2	k	RMSE
33	16	.66	0.076	0.129
	32	.69	0.147	0.116
36	16	.88	0.225	0.095
	32	.39	0.442	0.152
38	16	.93	0.284	0.059
	32	.35	0.357	0.135
39	16	.96	0.030	0.023
	32	.62	0.091	0.181
82	16	.79	0.231	0.100
	32	.71	0.143	0.155
83	16	.75	0.076	0.139
	32	.72	0.084	0.135
84	16	.00	0.229	0.209
	32	.35	0.357	0.135
86	16	.76	0.067	0.136
	32	.79	0.093	0.132