Aaron : I have not heard of any confirmation from outside of CO gull experts to confirm either , but the Glaucous-winged looks more likely to me , I am very uncertain about the Slaty-backed .Nick Komar has been wrong in previous years .
Any way I will be traveling up with Lynne Miller tomorrow to check the gulls out , not that I need either for my state list but Lynne needs Slaty-backed .I think we will arrive around 10:30 .Perhaps we will see you there . Best John -----Original Message----- From: 'Azz85' via Colorado Birds <[email protected]> To: quetzal65 <[email protected]> Cc: Cobirds <[email protected]> Sent: Sat, Feb 1, 2020 4:59 pm Subject: Re: [cobirds] Warren Lake gulls (Larimer) I am interested in chasing the gulls at Warren lake. It is a bit of a drive, so I am wondering if anyone is 100% confident with the slaty-backed and glaucous-winged identification? I have noticed that some people are calling the bird good and some hybrids. Are these pure gulls? I’ll defer to the experts Any help would be appreciated. Thanks Aaron Shipe Jeffco Sent from my iPhone > On Jan 29, 2020, at 10:54 PM, Nicholas Komar <[email protected]> wrote: > > Warren Lake is currently a gull hotspot, due to large fish population with a > large flock of common mergansers and common Goldeneye bringing fish to the > surface. Furthermore, there seems to be many dead fish frozen in the ice > sheet at the west end. The smorgasbord is attracting 500-600 gulls present > throughout the day. The area is private. However birders are welcome at the > lake. Just use common sense. Stay off residential properties. > > Gull numbers are as follows: > Ring-billed Gull - 500 (99% adult) > Herring Gull - 20 (40% adult) > Iceland (Thayer’s) Gull - 10-15 (10% adult) > Lesser Black-backed Gull- 6-10 (40% adult) > Glaucous Gull -1 immature > Great Black-backed Gull-1 immature > Mystery gulls-10 or so. > > The mystery gulls are mostly immature gulls that are > somewhat atypical. Most of these are probably Herring Gull hybrids such as > “Nelson’s” Gull (with Glaucous) and “Cook Inlet” Gull (with Glaucous-winged). > Today there were two first-Year large gulls that resembled Glaucous-winged > and one that resembled Slaty-backed. Better photos are needed to confirm > these. > > Nick Komar > Fort Collins 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 [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/cobirds/00F51F3E-FFA5-4FED-AC9E-EFB122B1116D%40comcast.net. -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/A99702F8-5091-4D4F-91F1-FE7B6ADC5E19%40aol.com. -- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/cobirds/829766471.480937.1580607178879%40mail.yahoo.com.
