[cobirds] Red Crossbills: Type 2 and 4 recorded together (Boulder)

A week ago, while with my dog on his morning walk, I noticed two Red Crossbills perched atop a spruce tree in our front yard. They were calling and they sounded different from one another, so I pulled out my phone and used Merlin to record them.I studied the sonograms today and think they were

Re: [cobirds] Red Crossbills & sunflowers

I just read the "Breeding" section about Red Crossbills in Cornell's Birds of the World.  I learned that Red Crossbills in North America potentially nest twice each year, once in the early spring and again in the late summer, depending upon the availability of cone seeds. A hypothesis, based on

[cobirds] Red Crossbills and questions (Boulder)

For the past three days, there has been a flock of at least 75 Red Crossbills chowing down on the seeds of sunflower plants at the Boulder Community Gardens in north central Boulder. I've never seen more than a few crossbills on a handful of occasions at this site over the past 25 years, where

Re: [cobirds] Hummingbird ID help, please DISREGARD

in Boulder. My sincere apologies for the confusion.Richard TrinknerBoulderOn Aug 29, 2022, at 6:23 PM, 'Richard Trinkner' via Colorado Birds wrote:Are the attached photos of an immature female Calliope Hummingbird? They were taken August 1st at the Boulder Community Gardens in north-central Boulder