Ah, if you seen a gull, you've seen 'em all. After all, they're mostly ring-billed, right? That's a tempting way to avoid the challenge of identifying these birds over the lake. They are tough, partly because they seem to rarely perch. Let me introduce to you the Sabine's gull. The adult breeding bird has a very dark gray head with a red ring around the eye and black neck ring. Look for a yellow tip to the bill and outstanding white tips on the edges of the wings. Both sexes are about 13.4 inches in length and weigh from 5.5-7.5 ounces. This is a smallish gull.