That's an interesting observation. We've had a flock of 10-14 crossbills on our feeder (black sunflower) in Pine Brook Hills everyday for two weeks now as well. About two weeks before they arrived, another flock came through for 1/2 a day, but only fed on the local ponderosa pine cones.
Preston
Boulder, County
On Mon, May 8, 2023 at 8:01 AM Curt Brown --- Boulder, CO <cbrown1902act@gmail.com> wrote:
Early one morning I had to blink a few times to convince myself that we had several Red Crossbills at the feeders. I expected them to be gone the next day, but after a week our local group of 10 are still here, sitting high in the cottenwoods when not feeding. This is a first for us in more than 40 years in South Boulder. Are we in the midst of a Crossbill irruption?--
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