FIGURE 3.

Boxplots for redness values of neck feathers from greater flamingos. The feathers either received direct solar radiation or were in darkness (n = 30 in each group) during 40 days. The boxes represent the interquartile ranges (IQR: 25th and 75th percentiles), and the lines within the boxes are the medians. Whiskers extend 1.5 × IQR from the 75th and 25th percentiles. A dot denotes an outlier. The redness values were obtained from the Commission International d’Eclairage (CIE) L*a*b* color space