[cobirds] Re: Heron? need id Boulder County Gross Reservoir

How about that?  I thought they were too dark.  Many thanks!
--Pieter

On Wednesday, June 5, 2019 at 11:04:35 AM UTC-6, Pieter Strauss wrote:

(Thought I posted this request before, but can't find it.)
These birds look fairly heron-like, but coloring and grouping don't seem to match.
On May 6th I saw a group of 6 of them flying west over Gross Reservoir at 6:45 a.m.  A neighbor said he had seen them earlier perched in the tops of several trees, looking gawky and acting raucous.
We have double-crested Cormorants up  here, but that's not what these are.
Any clues?

Pieter

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