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This is a list of the bird species recorded in Guam. The avifauna of Guam include a total of 121 species, of which two are endemic, two have been introduced by humans and one is rare or accidental. Four species listed are extirpated in Guam and are not included in the species count. Six species are globally threatened. This list's taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) follow the conventions of ''The Clements Checklist of Birds of the World'', 5th edition. The family accounts at the beginning of each heading reflect this taxonomy, as do the species counts found in each family account. Introduced and accidental species are included in the total counts for Guam. The following tags have been used to highlight several categories. Not all species fall into one of these categories. Those that do not are commonly occurring native species. * (A) Accidental - a species that rarely or accidentally occurs in Guam *( *) Endemic - a species either entirely confined to Guam in its natural distribution, or a species whose breeding range is entirely confined to Guam *(E) Extinct - a recent bird that no longer exists *(EW) Extinct in the wild - a species which only exists in captive breeding programs * (I) Introduced - a species introduced to Guam as a consequence, direct or indirect, of human actions * (Ex) Extirpated - a species that no longer occurs in Guam although populations exist elsewhere __NOTOC__ ==Shearwaters and petrels== Order: ProcellariiformesFamily: Procellariidae The procellariids are the main group of medium-sized "true petrels", characterized by united nostrils with medium septum and a long outer functional primary. *Wedge-tailed shearwater, ''Puffinus pacificus'' *Short-tailed shearwater, ''Puffinus tenuirostris'' *Townsend's shearwater, ''Puffinus auricularis'' *Audubon's shearwater, ''Puffinus lherminieri'' 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「List of birds of Guam」の詳細全文を読む スポンサード リンク
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