Folks, Some other larophiles chimed in on the pale Thayer's Gull I mentioned yesterday, suggesting it may be an Iceland Gull. I studied that particular bird and I don't necessarily disagree, just erroring on the side of caution as it was in the realm of THGU/ICGU no-man's-land as far as mantle color. The primaries were however as pale as the mantle and there was no secondary bar. The tertials seem patterned but also looked bleached to my eye, which gave me some pause. Photos of this bird and others can be seen at the link below. In any case, the number and variability of gulls there, especially in Herring and Thayer's Gull make for an excellent study. Also note, I was there around 11:30 am. The continual stream of birds over the course of 3+ hours doubled their numbers.
Glenn Walbek Castle Rock, CO http://www.pbase.com/gwalbek/2012_birds -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To post to this group, send email to cobirds@googlegroups.com. To unsubscribe from this group, send email to cobirds+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/cobirds?hl=en.
