Cygnus columbianus (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Cygnus columbianus" in Italian language version.

refsWebsite

Global rank Italian rank

3web.archive.org

1^st place

1^st place

1iucnredlist.org

88^th place

77^th place

low place

low place

1theswansanctuary.org.uk

low place

low place

1summagallicana.it

low place

2,655^th place

1swanlifeline.org.uk

low place

low place

4,338^th place

9,462^nd place

1toledoblade.com

3,531^st place

8,392^nd place

low place

2,479^th place

bsc-eoc.org

avibase.bsc-eoc.org

(EN) http://avibase.bsc-eoc.org/species.jsp?lang=IT&avibaseid=8848B012E77263C8&sec=summary&ssver=1 Cygnus columbianus atlanticus http://avibase.bsc-eoc.org]

harteman.nl

(EN) Tundra swan (Bewick's swan & Whistling swan)

iucnredlist.org

apiv3.iucnredlist.org

(EN) BirdLife International, 2021, Cygnus columbianus, su IUCN Red List of Threatened Species, Versione 2020.2, IUCN, 2020.

summagallicana.it

Gli Anseriformi http://www.summagallicana.it

swanlifeline.org.uk

(EN) Whistling Swan http://www.swanlifeline.org.uk/ Archiviato l'11 novembre 2013 in Internet Archive.

theswansanctuary.org.uk

(EN) Swan Species http://www.theswansanctuary.org.uk/ Archiviato il 10 novembre 2013 in Internet Archive.

toledoblade.com

(EN) - Tundra Swan

web.archive.org

(EN) Swan Species http://www.theswansanctuary.org.uk/ Archiviato il 10 novembre 2013 in Internet Archive.
(EN) Whistling Swan http://www.swanlifeline.org.uk/ Archiviato l'11 novembre 2013 in Internet Archive.
Diverse colorazioni del becco del Cigno Fischiatore (JPG), su harteman.nl. URL consultato il 14 novembre 2013 (archiviato dall'url originale il 7 gennaio 2015).

wwf.it

https://www.wwf.it/news/notizie/?52160%2FCinque-perle-dal-grande-Nord