Masked Gulls
* Black-headed Gull * Bonaparte's Gull * Brown-hooded Gull * Red-billed Gull * Silver Gull * Slender Billed Gull *
Little Gull
Hydrocoloeus minutus
Hooded Gulls
* Franklin's Gull * Laughing Gull *
Large Black-headed Gulls
* Audouin's Gull * Mediterranean Gull *
Large White-headed Gulls
* Great Black-backed Gull * Heermann's Gull * Herring Gull * Lesser Black-backed Gull * Pacific Gull * Ring-billed Gull * Southern Black-backed Gull * Western…