Lari

The suborder Lari is the part of the order Charadriiformes which includes the gulls, terns, skuas and skimmers, with the waders and snipes making up the rest of the order. Following recent research, the auks are now placed into the Lari too. Sometimes, the buttonquails are also placed here, but the molecular data and fossil record rather suggests them be a quite basal offshoot along with the snipe-like and aberrant waders.

Behaviour
Pratincoles and coursers are insectivorous eating many kinds of insects, while skuas are carnivorous, jaegers are omnivorous and kleptoparasitic, the Crab Plover is a crab-eating specialist, larids are omnivorous and will even steal food from human hands as well as kleptoparasitic, and auks are carnivorous and will eat fish, jellyfish, crustaceans, zooplankton, worms, mollusks and squid.

Most species are monogamous, having only one mate and most species nest colonially. Murrelets are nocturnal, especially when they're breeding. Many species are countershaded, having white undersides and dark backs.

Taxonomy
It contains the following families:
 * Crab Plover: Dromadidae
 * Pratincoles and Coursers: Glareolidae
 * Skuas: Stercorariidae
 * Auks: Alcidae
 * Gulls, Terns and Skimmers: Laridae