Context: The Inca tern ("Larosterna inca") is a seabird in the family Sternidae. It is the only member of the genus "Larosterna"., Plumage ("feather") refers both to the layer of feathers that cover a bird and the pattern, colour, and arrangement of those feathers. The pattern and colours of plumage differ between species and subspecies, and may vary with age classes. Within species there can be different colour morphs., Gulls, often referred to as seagulls, are seabirds of the family Laridae in the suborder Lari. They are most closely related to the terns (family Sternidae) and only distantly related to auks, skimmers, and more distantly to the waders. Until the 21st century, most gulls were placed in the genus "Larus", but this arrangement is now known to be polyphyletic, leading to the resurrection of several genera. An older name for gulls is mew, cognate with German "Möwe", Danish "måge", Dutch "meeuw", and French "mouette"; this term can still be found in certain regional dialects., Gygis is a genus of birds in the tern family . It consists of one species , White tern , Gygis alba Little white tern , Gygis alba microrhyncha The little white tern is usually considered to be a subspecies , G. a. microrhyncha , of the white tern . These are small , all white terns of tropical oceans . They nest on coral islands , usually on trees with thin branches but also on rocky ledges and on man - made structures . They feed on small fish caught by plunge diving ., Terns are seabirds in the family Sternidae that have a worldwide distribution and are normally found near the sea, rivers, or wetlands. Previously considered a subfamily of the gulls, Laridae, they are now usually given full family status and divided into eleven genera. They are slender, lightly built birds with long, forked tails, narrow wings, long bills, and relatively short legs. Most species are pale grey above and white below, with a contrasting black cap to the head, but the marsh terns, the Inca tern, and some noddies have dark plumage for at least part of the year. The sexes are identical in appearance, but young birds are readily distinguishable from adults. Terns have a non-breeding plumage, which usually involves a white forehead and much-reduced black cap., A wetland is a land area that is saturated with water, either permanently or seasonally, such that it takes on the characteristics of a distinct ecosystem. The primary factor that distinguishes wetlands from other land forms or water bodies is the characteristic vegetation of aquatic plants, adapted to the unique hydric soil. Wetlands play a number of roles in the environment, principally water purification, flood control, carbon sink and shoreline stability. Wetlands are also considered the most biologically diverse of all ecosystems, serving as home to a wide range of plant and animal life., The name marsh tern refers to terns of the genus "Chlidonias", which are typically found in freshwater marshes, rather than coastal locations. The genus name "Chlidonias" is from Ancient Greek "khelidonios", "swallow-like", from "khelidon", "swallow"., Subject: gygis, Relation: parent_taxon, Options: (A) area (B) bird (C) inca (D) lari (E) laridae (F) larus (G) marsh tern (H) tern
Output: laridae