New South Wales, Australia.
Some recent authors place this species and other “masked gulls” in genus Chroicocephalus (see L. philadelphia). A recent molecular study indicated that this species was sister to L. bulleri#R. May be closely related to, and is sometimes considered conspecific with, L. hartlaubii. Morphometric analysis of skeletal characters links present species with L. serranus, L. maculipennis and L. cirrocephalus. Race scopulinus sometimes treated as a separate species (e.g. in HBW), but distinguishing characters few and minor; scopulinus hybridizes with L. bulleri rarely, even where breeding alongside (L Rotorua). Tasmanian birds sometimes separated as race gunni, but variation only clinal. Three subspecies recognized.
Food and feeding
Status and conservation
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