Forum > Birds In The News > Declining Male Offspring Further Imperil Endangered Flycatchers In Southern California

Webmaster Posted 21-Dec-2016 09:14
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From Science Daily and Guardian on 21-Dec-2016 09:14

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


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