Glaucous-winged gull
Larus glaucescens
The glaucous-winged gull is a large, white-headed gull. The genus name is from Latin "Larus" which appears to have referred to a gull or other large seabird. The specific "glaucescens" is New Latin for "glaucous" from the Ancient Greek, "glaukos", denoting the grey color of its wings.