White eye patches of female wood ducks, Aix sponsa, vary markedly in size and may reflect individual status or condition
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DOI: 10.1016/j.anbehav.2020.06.023
Abstract: Research into plumage ornaments and plumage signals of individual state has focused primarily on males, while variation among females has received far less attention. White patches of plumage around the eye (eye patches) are a… read more here.
Keywords: eye patches; size; eye patch; eye ... See more keywords