Pterodroma externa (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Pterodroma externa" in Italian language version.

refsWebsite

Global rank Italian rank

1iucnredlist.org

88^th place

77^th place

1worldbirdnames.org

1,007^th place

182^nd place

3,128^th place

780^th place

hbw.com

(EN) Juan Fernandez Petrel (Pterodroma externa), su hbw.com. URL consultato il 29 agosto 2019.

iucnredlist.org

apiv3.iucnredlist.org

(EN) BirdLife International 2018, Pterodroma externa, su IUCN Red List of Threatened Species, Versione 2020.2, IUCN, 2020.

worldbirdnames.org

(EN) F. Gill e D. Donsker (a cura di), Family Procellariidae, in IOC World Bird Names (ver 14.2), International Ornithologists’ Union, 2024. URL consultato il 13 agosto 2019.