Table 1.

Percentages of gray, orange, and yellow throat coloration, and achromatic and chromatic contrast values at three time points. Values are least‐squared means ± SE. Control and cort values were not significantly different for any component of color at any one time point; however, gray coloration significantly decreased over time in cort‐treated individuals and not control individuals. The proportions of gray, orange, and yellow throat colors were derived from segmentation analysis of digital images. Chromatic contrast and achromatic contrast values were derived from spectral measurements

Dependent	Pretreatment	Week 1	Week 4
Gray (%)
Cort	77.16 ± 6.92	73.31 ± 7.29	71.57 ± 7.68
Control	81.10 ± 5.03	78.84 ± 5.28	82.15 ± 4.50
Orange (%)
Cort	14.94 ± 6.48	15.92 ± 6.68	16.19 ± 7.27
Control	9.94 ± 5.14	10.47 ± 5.41	7.98 ± 4.37
Yellow (%)
Cort	7.90 ± 2.84	10.76 ± 3.93	12.24 ± 4.05
Control	8.94 ± 3.23	10.70 ± 3.60	9.88 ± 3.38
Chromatic contrast
Cort	4.749 ± 0.32	4.022 ± 0.29	4.823 ± 0.31
Control	4.420 ± 0.33	4.161 ± 0.30	4.729 ± 0.31
Achromatic contrast
Cort	19.518 ± 1.71	15.014 ± 1.51	13.253 ± 1.63
Control	15.651 ± 1.74	14.985 ± 1.57	15.018 ± 1.66