Declining male offspring further imperil endangered flycatchers in southern California

Wildlife News21 December 2016


A new study documents the steep decline of a population of endangered southwestern willow flycatchers over 16 years and the change in sex ratio that has left the birds future hanging on a dwindling number of males.
SCIENCEDAILY.COM

Read More: https://www.sciencedaily.com/releases/2016/12/161221091420.htm

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