Date: 6/26/18 8:06 am From: Nathan Pieplow <npieplow...> Subject: Re: [cobirds] Brewer's Sparrow, Guanella Pass, Clear Creek County
Susan et al.,
Last I knew, there was no evidence that the Brewer's Sparrows occasionally
found above treeline in Colorado belong to the "Timberline" subspecies. All
available evidence suggested that these were typical Brewer's Sparrows that
sometimes nest at high elevations (possibly for a second nesting attempt).
As far as I am aware, the southern limit of breeding "Timberline" Brewer's
Sparrows is in the Glacier National Park area of northern Montana.
That said, it's always a good idea to get a recording of interesting birds
On Tue, Jun 26, 2018 at 7:29 AM, Susan Wise <burrowingowlsusan...>
> This could be a Timberline which is a subspecies of the Brewer’s Sparrow.
> Did you get a recording?
> Does anyone know the current status of research of the potential of
> separating the Timberline into a separate species? Any links would be
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