Brief comment: This rare Yellow-billed Loon was studied for at least 30 min at very long range but under perfect viewing conditionss through telescopes. It was on the small end for its species (slighter than most of the Common Loons near it) , but consistently showed a yellow bill, paler brown color on upperparts, clear pale post-auricular area patch, and somewhat blocky head. Juvenal pale fringes to scapulars was also prominent. We were unable to photograph it unfortuntely.
We ended up finding a dozen Common Loons on this lake. One of these showed a lighter brown head and hint of a pale post-auricular patch. Good luck refinding the bird. Please let me or the list know if you do! Nick Komar Fort Collins CO ----- Original Message ----- From: "Nathan Pieplow" <[email protected]> To: <[email protected]> Sent: Saturday, November 07, 2009 1:01 PM Subject: [cobirds] Yellow-billed Loon, Standley Lake > > > Cole Wild and Nick Komar report a juvenile Yellow-billed Loon at > Standley Lake (Jefferson County) right now, out in the center. Also > at Standley are at least 3 Common Loons. > > They saw the Parasitic Jaeger and Surf Scoters at Chatfield. They > did NOT find an Arctic Loon at Marston, although they saw 10 Common > Loons, one of which had significant white along the sides. This > might be the bird people have been calling a possible Arctic. > > Nathan Pieplow > Boulder > > > > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
