presumed Glaucous-winged x Glaucous Gull, 1st cycle (1 of 3)
Rio del Mar, CA
OVERALL UPPER BODY PATTERN RECALLS GLAUCOUS-WINGED.
BICOLORED BILL SMEARED FROM BLACK TIP TO FLESH BASE.
WHITE PRIMARIES GOOD FOR GLAUCOUS BUT RETAIN HINT
OF GLAUCOUS-WINGED TAN.
