Table 1.

The ρ values for Spearman's rank correlations between adjacent hen age periods for mean daily ranging hours, visits, and proportion of days spent outside for hens from three rearing enrichment treatments (control, novelty, structural).

	Rearing treatment
Age (weeks)	Control	Novelty	Structural
	Ranging hoursa
25–27 and 27–31	ρ = 0.74	ρ = 0.74	ρ = 0.80
27–31 and 31–38	ρ = 0.82	ρ = 0.81	ρ = 0.81
31–38 and 38–44	ρ = 0.92	ρ = 0.91	ρ = 0.92
38–44 and 47–54	ρ = 0.92	ρ = 0.90	ρ = 0.92
47–54 and 55–64	ρ = 0.94	ρ = 0.95	ρ = 0.95
25–27 and 55–64	ρ = 0.38	ρ = 0.36	ρ = 0.46
	Ranging visitsa
25–27 and 27–31	ρ = 0.75	ρ = 0.76	ρ = 0.80
27–31 and 31–38	ρ = 0.84	ρ = 0.81	ρ = 0.81
31–38 and 38–44	ρ = 0.93	ρ = 0.89	ρ = 0.89
38–44 and 47–54	ρ = 0.88	ρ = 0.87	ρ = 0.88
47–54 and 55–64	ρ = 0.90	ρ = 0.90	ρ = 0.88
25–27 and 55–64	ρ = 0.37	ρ = 0.33	ρ = 0.46
	Proportion days ranginga
25–27 and 27–31	ρ = 0.81	ρ = 0.77	ρ = 0.83
27–31 and 31–38	ρ = 0.84	ρ = 0.82	ρ = 0.86
31–38 and 38–44	ρ = 0.81	ρ= 0.82	ρ = 0.83
38–44 and 47–54	ρ = 0.84	ρ = 0.85	ρ = 0.74
47–54 and 55–64	ρ = 0.79	ρ = 0.80	ρ = 0.80
25–27 and 55–64	ρ = 0.34	ρ = 0.31	ρ = 0.30

A comparison between the first and last age periods for each ranging variable is italicized.

^aAll P < 0.0001.