Date: 8/5/19 5:06 pm
From: Wayne Hoffman <whoffman...>
Subject: [obol] Re: More on white-tail juncos
Hi - 

Juncos are currently undergoing their annual pre-basic molt, which replaces all their feathers over a period of several weeks.  Some of them seem to molt their inner, dark tail-feathers before their outer, white ones.  if you can get photos good enough to count feathers, you will be able to tell whether or not the "white-tailed" ones have their full complement of feathers.

On 8/5/2019 7:54:53 PM, Harry Fuller <atowhee...> wrote:
Do we have a significant population of white-tail juncos here in NW Oregon?  These are apparently locally breeding birds, not migrants from far-off forest.
I have now heard from two other white-tail spotters in Portland Metro area.  Maybe we need a concerted white-tail census among feeder watchers on Obol?
Here's update with two other observers' comments. [] 


Harry Fuller
author of: San Francisco's Natural History: Sand Dunes to Streetcars: []

author of Great Gray Owls of CA-OR-WA: []
author of Freeway Birding: []
birding website: []
my birding blog: []

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