Date: 10/1/18 10:19 am
From: Bryan Guarente <bryan.guarente...>
Subject: [cobirds] Possible Eastern Wood-pewee (Boulder county: northeast Boulder)
I had the good fortune of a wood-pewee showing up outside my office window
this morning (3085 Center Green Drive, northeast Boulder). Took some poor
digibinned photos (in linked checklist below).

I found this bird to lean more towards Eastern than Western Wood-pewee.
Because this is an immature bird, I am hesitant of the colorations since it
is a hatch-year bird.

- Strong buffy wingbars of equivalent brightness to each other.
- Long primaries compared to tail.
- Coloration of back and head seemed more brownish (dirty) than grayish
(rather than ashy).
- Vested look is much more like Olive-sided Flycatcher than the washed
out Western Wood-pewee I am used to. This individual showed a distinct
open-vested look with an obvious white stripe down its chest.
- When viewed from below, the undertail coverts seemed more yellowy, and
less smudged than I have seen previously with Western Wood-pewee.
- Maxilla dark.
- Mostly yellow mandible (70-80%).
- Eyering.
- Crested look at times.
- No tail flicking.

Bird still present as of 11:10am.
Along the railroad tracks west of Center Green 2 (3085 Center Green Drive).

Here is my eBird checklist if anyone needs to see the photos.

Feel free to refute this claim as well as this would be a first for me in
terms of differentiating. Seen plenty of both species, just never found
one in the "others territory".

Bryan Guarente
Meteorologist/Instructional Designer
UCAR/The COMET Program
Boulder, CO

You received this message because you are subscribed to the Google Groups "Colorado Birds" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+<unsubscribe...>
To post to this group, send email to <cobirds...>
To view this discussion on the web visit<3DKJ6i_UJfxLPEjw...>
For more options, visit

Join us on Facebook!