Upon checking Warren Lake today 1-2:30 pm I found an adult Glaucous-winged Gull, presumably the same bird Nick Komar had this morning on another lake. The 1st cycle Glaucous Gull was present at least at the beginning of my stay, and the 1st cycle Great Black-backed Gull arrived around 2 but seemed to have disappeared shortly after. Among several 1st cycle Thayer's Gulls, one bird looked larger and good for a Cook Inlet (Herring x Glaucous-winged) but I did not see any young birds that looked like pure Glaucous-winged. I also tallied 7 Lesser Black-backed Gulls and 6 Thayer's Gulls.
Good birding, David Tonnessen Boulder, CO -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/efa7139d-5abf-4c98-af8c-b1fdb0067f1e%40googlegroups.com.
