Date: 8/14/25 8:05 am
From: Peter Ruprecht <pruprecht...>
Subject: Re: [cobirds] AOU has split Warbling Vireo
Just anecdotally, I have heard both songs within 100m of each other at
Walden Ponds in E. Boulder County. So it seems like there's some range
overlap.

I guess this situation is a reason why I should do a better job of
documenting subspecies when they are clearly differentiable.

Peter Ruprecht
Superior

On Thu, Aug 14, 2025 at 8:22 AM Brandon <flammowl17...> wrote:

> We now have two species of Warbling Vireos. Eastern Warbling-Vireo and
> Western Warbling-Vireo both breed here in Colorado. The songs are
> different. I know the birds I have breeding up here in Custer County in
> Aspen trees are western, what about the breeding birds at Lake Pueblo State
> Park in Cottonwood trees? Just trying to figure out how far West the
> eastern ones are. I am pretty sure they are all easterns that breed in
> Otero, Bent, Prowers, along the Arkansas River in SE Colorado.
>
> Thanks for any info on their range in Colorado.
>
> Brandon Percival
> Pueblo West, CO
>
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