Hi: 3:50 Saturday afternoon at the west end of Warren Lake, Fort Collins, access from end of Sprindrift drive there was a large dark mantled gull.
I viewed a dark-backed gull, standing amongst a flock comprising of Ring-bills, California, Herring Gull. The gull was darker mantled than an adjacent adult California. There was a strong contrast of tertial tips with mantle. Legs were pale pink, and the eye was palish. I assume this was the same gull that was seen earlier this week. Many of the above mentioned features seemed suggestive for an adult Western Gull, except I felt the bill lacked the heft, the depth and particularly prominent gonydeal angle I associate with a typical Western. There is probably a good chance this gull has a high degree of Western genes in it. Of course I didn't have a camera, which would have been very helpful in depicting the bill shape. Hope someone else with a camera and can get a definitive picture of it. Bob Righter Denver CO -- Colorado Field Ornithologists: http://www.cfo-link.org/ Colorado County Birding: http://www.coloradocountybirding.com/ You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.as/group/cobirds?hl=en
