A tad late but to add to the recent influx of Sabine's Gull reports this week:
There was a juv Sabine's Gull on the roadside of Hwy 285 on the west side of Grant, Park Co. on Monday the 15th.
To see one at 8,600 ft elevation in coniferous forest is not what I had expected as I drove by...I've only seen them around large lakes in Colorado.
A few pics in the ebird report:
Cheers,
Tim Mitzen