Gulls
Black-legged kittiwake (Rissa tridactyla)
Ivory Gull (Pagophila eburnea)
Sabine's Gull (Xema sabini)
Slender-billed Gull (Chroicocephalus gen
Bonaparte's Gull (Chroicocephalus philadelphia)
Black-headed gull (Chroicocephalus ridib
Little Gull (Hydrocoloeus minutus)
Ross's Gull (Rhodostethia rosea)
Laughing Gull (Leucophaeus atricilla)
Franklin's Gull (Larus pipixcan)
Audouin's Gull (Larus audouinii)
Mediterranean gull (Larus melanocephalus
Pallas's Gull (Ichthyaetus ichthyaetus)
Common Gull (Larus canus)
Ring-billed Gull (Larus delawarensis)
Great Black-backed Gull (Larus marinus)
Glaucous-winged Gull (Larus glaucescens)
Glaucous Gull (Larus hyperboreus)
Iceland Gull (Larus glaucoides)
Herring gull (Larus argentatus)
American Herring Gull (Larus smithsonianus)
Caspian Gull (Larus cachinnans)
Yellow-legged Gull (Larus michahellis)
Slaty-backed Gull (Larus schistisagus)
Lesser black-backed gull (Larus fuscus)