Yellow-legged GullLarus michahellis
25" (64 cm). A large gull. Similar to Herring Gull. Adult white with gray back and wings (darker than Herring, lighter than Lesser Black-backed); bold, broad black area at end of wing, with limited white spotting toward very tip of wing. Bill bright yellow with red spot on lower mandible (sometimes extending onto maxilla). Legs and feet yellow. Acquires adult plumage in three years.