Re: “Song Thrasher” at LLC

John Callender
 

A quick followup to share some information someone was kind enough to forward to me. This appears to be a condition called “Avian Keratin Disorder”, or AKD, first described in chickadees in Alaska in the 1990s. Recent research suggests it may be caused by a virus. More information at the links below (including a link to a form for reporting birds with the condition; I’ve taken the liberty of submitting a report for this bird already based on the two eBird lists).

https://www.eurekalert.org/pub_releases/2016-07/caos-ndv072516.php

https://www.usgs.gov/centers/asc/science/beak-deformities-landbirds?qt-science_center_objects=0#qt-science_center_objects

John Callender
Carpinteria

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