Thayer's Gull photographs © Bill Schmoker

All photographs copyrighted by the author. Publication-quality 300dpi versions and prints of many of the images contained in this web site are available- inquiries welcomed- email bill@schmoker.org

Adult Thayer's Gull, Boulder County, Colorado, 3/06.

Adult Thayer's Gull, Lake Ogallala, Nebraska, 12/04.

Adult Thayer's Gull, Lake Ogallala, Nebraska, 12/04.

Juvenile Thayer's Gull (left) with Juvenile Herring Gull, Grand Marais, MN, 10/04. Note difference in primary color, head shape, and bill structure.

Adult Thayer's Gull, Prince Lake #1, Boulder County, Colorado, 1/04.

Adult Thayer's Gull, Prince Lake #1, Boulder County, Colorado, 1/04.

Composite photo of Adult Thayer's Gull (with unusually black p10), Baseline Reservoir, Boulder County, Colorado, 11/03.

Juvenile Thayer's Gull at Thomas Reservoir, Lafayette, Colorado 12/24/01.

All photographs copyrighted by the author. Publication-quality 300dpi versions and prints of many of the images contained in this web site are available- inquiries welcomed- email bill@schmoker.org