Regulus calendula (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Regulus calendula" 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) Ruby-crowned Kinglet (Regulus calendula), su Handbook of the Birds of the World. URL consultato il 19 dicembre 2017.

iucnredlist.org

apiv3.iucnredlist.org

(EN) BirdLife International 2012, Regulus calendula, su IUCN Red List of Threatened Species, Versione 2020.2, IUCN, 2020.

worldbirdnames.org

(EN) F. Gill e D. Donsker (a cura di), Family Regulidae, in IOC World Bird Names (ver 9.2), International Ornithologists’ Union, 2019. URL consultato l'8 maggio 2014.