Seagulls at Hervey Bay Boat Club

http://en.wikipedia.org/wiki/Gull
Gulls (often informally seagulls) are birds in the family Laridae. They are most closely related to the terns (family Sternidae) and only distantly related to auks, skimmers, and more distantly to the waders. Until recently, most gulls were placed in the genus Larus, but this arrangement is now known to be polyphyletic, leading to the resurrection of several genera.
They are typically medium to large birds, usually grey or white, often with black markings on the head or wings. They typically have harsh wailing or squawking calls. They have stout, longish bills, and webbed feet. Gull species range in size from the Little Gull, at 120 g (4.2 oz) and 29 cm (11.5 inches), to the Great Black-backed Gull, at 1.75 kg (3.8 lbs) and 76 cm (30 inches).
Most gulls, particularly Larus species, are ground nesting carnivores, which will take live food or scavenge opportunistically. Live food often includes crabs and small fish. Apart from the kittiwakes, gulls are typically coastal or inland species, rarely venturing far out to sea and into surrounding deciduous forests.

Genus Larus
Pacific Gull, Larus pacificus

Belcher's Gull, Larus belcheri

Olrog's Gull, Larus atlanticus

Black-tailed Gull, Larus crassirostris


Heermann's Gull, Larus heermanni

Common Gull or Mew Gull, Larus canus