I observed all 3 birds this afternoon from 1:45-2:15 from the north boat launch. Originally, the birds appeared to be up against the dam adjacent from the Marina Sand Spit but as boaters moved around the lake they moved further toward the north where identifiable marks could be seen with binoculars from the point at the boat launch.
Although identifiable marks could be seen that allowed me to compare the larger, dark-morphed bird to the photos obtained by Mark, I'd love if someone could help point out what features of the bird that can be seen from a distance, or even in the photos, point toward Parasitic and not Pomarine. I've had some experience with both, but the behavior I observed today reminded me more of what I've seen from Pomarine. I'm sure someone with more experience has a reason for the ID of Parasitic - can you please share with the group? Is it the dark cinnamon undertail noted by Gregg? Thanks, Kevin DeBoer Lakewood, CO On Tuesday, September 11, 2018 at 2:13:58 PM UTC-6, Gregg Goodrich wrote: > > Mark > > Thanks for all the excellent photos. Good job!! I see the dark cinnamon on > the undertail of your dark Parasitic juvenile photo. So nice! > > Gregg > > -- You received this message because you are subscribed to the Google Groups "Colorado Birds" group. To unsubscribe from this group and stop receiving emails from it, send an email to cobirds+unsubscr...@googlegroups.com. To post to this group, send email to cobirds@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/f4037eaf-1dd2-4a29-9ce0-95d62c984edd%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
