Date: 6/6/19 5:39 am
From: David Lawrance <david.lawrance...>
Subject: [cobirds] Re: Heron? need id Boulder County Gross Reservoir
Just this week I've noticed about a 3x increase in number of herons, much
more tree-perching, flying in pairs, and more frequent interactions at
McIntosh Lake in Longmont There is a rookery at nearby Pella Crossing.
Perhaps the herons are fledging?


On Wednesday, June 5, 2019 at 11:04:35 AM UTC-6, Pieter Strauss wrote:
> [image: Herons_crv_lvl_shrp_crop 05 06 2019_DSC8232.jpg]
> (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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