Larinae: Gulls Swallow-tailed Gull, Creagrus furcatus Little Gull, Hydrocoloeus minutus Ross’s Gull, Rhodostethia rosea Black-legged Kittiwake, Rissa tridactyla Red-legged Kittiwake, Rissa brevirostris Ivory Gull, Pagophila eburnea Sabine’s Gull, Xema sabini Saunders’s Gull, Saundersilarus saundersi Slender-billed Gull, Chroicocephalus genei Bonaparte’s Gull, Chroicocephalus philadelphia Black-headed Gull, Chroicocephalus ridibundus Brown-headed Gull, Chroicocephalus brunnicephalus Andean Gull, Chroicocephalus serranus Brown-hooded Gull, Chroicocephalus maculipennis Gray-hooded Gull, Chroicocephalus cirrocephalus Gray-headed Gull, Chroicocephalus poiocephalus Hartlaub’s Gull, Chroicocephalus hartlaubii Black-billed Gull, Chroicocephalus bulleri Red-billed Gull, Chroicocephalus scopulinus Silver Gull, Chroicocephalus novaehollandiae Gray Gull, Leucophaeus modestus Dolphin Gull, Leucophaeus scoresbii Laughing Gull, Leucophaeus atricilla Franklin’s Gull, Leucophaeus pipixcan Lava Gull, Leucophaeus fuliginosus Great Black-headed Gull / Pallas’s Gull, Ichthyaetus ichthyaetus Relict Gull, Ichthyaetus relictus Mediterranean Gull, Ichthyaetus melanocephalus Audouin’s Gull, Ichthyaetus audouinii White-eyed Gull, Ichthyaetus leucophthalmus Sooty Gull, Ichthyaetus hemprichii Heermann’s Gull, Larus heermanni Pacific Gull, Larus pacificus Black-tailed Gull, Larus crassirostris Belcher’s Gull, Larus belcheri Olrog’s Gull, Larus atlanticus Mew Gull, Larus canus Ring-billed Gull, Larus delawarensis Western Gull, Larus occidentalis Yellow-footed Gull, Larus livens Great Black-backed Gull, Larus marinus European Herring Gull, Larus argentatus Armenian Gull, Larus armenicus Yellow-legged Gull, Larus michahellis Caspian Gull, Larus cachinnans Kelp Gull, Larus dominicanus Lesser Black-backed Gull, Larus fuscus Heuglin’s Gull, Larus heuglini California Gull, Larus californicus American Herring Gull, Larus smithsonianus Glaucous-winged Gull, Larus glaucescens Glaucous Gull, Larus hyperboreus Iceland Gull, Larus glaucoides Slaty-backed Gull, Larus schistisagus Vega Gull / East Siberian Gull, Larus vegae Mongolian Gull, Larus mongolicus Sources: Crochet et al. (2002), Gay et al. (2005), Given et al. (2005), Liebers et al. (2001, 2002, 2004), Pons et al. (2004, 2005), Sternkopf (2011)..