Change in molting patterns by adult birds.

<p>Nov–Mar are months for extended molt (a), Apr–May for early molt (b). White bars are for 1989–1999, black bars for 2000–2006. Sample sizes are above bars. Analyses of deviance from logistic regression are in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0029834#pone-0029834-t004" target="_blank">Table 4</a>. Individual birds were used only once for each analysis.