- Chroicocephalus brunnicephalus (Brown-headed Gull)
- Chroicocephalus bulleri (Black-billed Gull)
- Chroicocephalus cirrocephalus (Gray-hooded Gull)
- Chroicocephalus cirrocephalus cirrocephalus
- Chroicocephalus genei (Slender-billed Gull)
- Chroicocephalus hartlaubii (Hartlaub’s Gull)
- Chroicocephalus maculipennis (Brown-hooded Gull)
- Chroicocephalus novaehollandiae (Silver Gull)
- Chroicocephalus novaehollandiae forsteri
- Chroicocephalus novaehollandiae novaehollandiae
- Chroicocephalus philadelphia (Bonaparte’s Gull)
- Chroicocephalus ridibundus (Black-headed Gull)
- Chroicocephalus scopulinus (Red-billed Gull)
- Chroicocephalus serranus (Andean Gull)
- Creagrus furcatus (Swallow-tailed Gull)
- Hydrocoloeus minutus (Little Gull)
- Ichthyaetus audouinii (Audouin’s Gull)
- Ichthyaetus hemprichii (Sooty Gull)
- Ichthyaetus ichthyaetus (Great Black-headed Gull)
- Ichthyaetus leucophthalmus (White-eyed Gull)
- Ichthyaetus melanocephalus (Mediterranean Gull)
- Ichthyaetus relictus (Relict Gull)
- Larus argentatus (Herring Gull)
- Larus argentatus argentatus
- Larus argentatus argentatus/argenteus (Herring Gull (European))
- Larus argentatus argenteus
- Larus argentatus smithsonianus (Herring Gull (American))
- Larus argentatus vegae (Herring Gull (Vega))
- Larus armenicus (Armenian Gull)
- Larus atlanticus (Olrog’s Gull)
- Larus belcheri (Belcher’s Gull)
- Larus cachinnans (Caspian Gull)
- Larus cachinnans barabensis (Caspian Gull (Steppe))
- Larus cachinnans cachinnans (Caspian Gull (Caspian))
- Larus cachinnans mongolicus (Caspian Gull (Mongolian))
- Larus californicus (California Gull)
- Larus californicus albertaensis (California Gull (albertaensis))
- Larus californicus californicus (California Gull (californicus))
- Larus canus (Mew Gull)
- Larus canus brachyrhynchus (Mew Gull (American))
- Larus canus canus (Mew Gull (European))
- Larus canus heinei (Mew Gull (heinei))
- Larus canus kamtschatschensis (Mew Gull (Kamchatka))
- Larus crassirostris (Black-tailed Gull)
- Larus delawarensis (Ring-billed Gull)
- Larus dominicanus (Kelp Gull)
- Larus dominicanus austrinus
- Larus dominicanus dominicanus
- Larus dominicanus vetula
- Larus fuscus (Lesser Black-backed Gull)
- Larus fuscus fuscus (Lesser Black-backed Gull (fuscus))
- Larus fuscus graellsii (Lesser Black-backed Gull (graellsii))
- Larus fuscus heuglini (Lesser Black-backed Gull (Heuglin’s))
- Larus fuscus intermedius (Lesser Black-backed Gull (intermedius))
- Larus glaucescens (Glaucous-winged Gull)
- Larus glaucoides (Iceland Gull)
- Larus glaucoides glaucoides (Iceland Gull (glaucoides))
- Larus glaucoides kumlieni (Iceland Gull (Kumlien’s))
- Larus heermanni (Heermann’s Gull)
- Larus hyperboreus (Glaucous Gull)
- Larus hyperboreus barrovianus
- Larus hyperboreus hyperboreus
- Larus hyperboreus leuceretes
- Larus hyperboreus pallidissimus
- Larus livens (Yellow-footed Gull)
- Larus marinus (Great Black-backed Gull)
- Larus michahellis (Yellow-legged Gull)
- Larus michahellis atlantis
- Larus michahellis michahellis
- Larus occidentalis (Western Gull)
- Larus occidentalis occidentalis
- Larus occidentalis wymani
- Larus pacificus (Pacific Gull)
- Larus pacificus georgii
- Larus pacificus pacificus
- Larus schistisagus (Slaty-backed Gull)
- Larus thayeri (Thayer’s Gull)
- Leucophaeus atricilla (Laughing Gull)
- Leucophaeus atricilla atricilla
- Leucophaeus atricilla megalopterus
- Leucophaeus fuliginosus (Lava Gull)
- Leucophaeus modestus (Gray Gull)
- Leucophaeus pipixcan (Franklin’s Gull)
- Leucophaeus scoresbii (Dolphin Gull)
- Pagophila eburnea (Ivory Gull)
- Rhodostethia rosea (Ross’s Gull)
- Rissa brevirostris (Red-legged Kittiwake)
- Rissa tridactyla (Black-legged Kittiwake)
- Rissa tridactyla pollicaris (Black-legged Kittiwake (Pacific))
- Rissa tridactyla tridactyla (Black-legged Kittiwake (Atlantic))
- Saundersilarus saundersi (Saunders’s Gull)
- Xema sabini (Sabine’s Gull)
- Xema sabini sabini
- Xema sabini tschuktschorum
- Xema sabini woznesenskii