List of birds of Portugal (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "List of birds of Portugal" in English language version.

refsWebsite

Global rank English rank

2^nd place

4,338^th place

6,262^nd place

88^th place

160^th place

332^nd place

246^th place

1,007^th place

1,255^th place

bsc-eoc.org

Lepage, Denis (August 1, 2020). "Checklist of Birds of Portugal". Avibase bird checklists of the world. Retrieved October 31, 2020.
Lepage, Denis (August 2, 2020). "Checklist of Birds of the Azores". Avibase bird checklists of the world. Retrieved October 31, 2020.
Lepage, Denis (August 2, 2020). "Checklist of Birds of the Madeiras". Avibase bird checklists of the world. Retrieved October 31, 2020.

Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements Checklist of Birds of the World: v2022. Downloaded from http://www.birds.cornell.edu/clementschecklist/download/ Retrieved October 15, 2022.

BirdLife International. (2016). "Tetrao urogallus". IUCN Red List of Threatened Species. 2016: e.T22679487A85942729. doi:10.2305/IUCN.UK.2016-3.RLTS.T22679487A85942729.en. Retrieved 7 April 2021.
BirdLife International. (2016). "Perdix perdix". IUCN Red List of Threatened Species. 2016: e.T22678911A85929015. doi:10.2305/IUCN.UK.2016-3.RLTS.T22678911A85929015.en. Retrieved 7 April 2021.
BirdLife International. (2017) [amended version of 2017 assessment]. "Gypaetus barbatus". IUCN Red List of Threatened Species. 2017: e.T22695174A118590506. doi:10.2305/IUCN.UK.2017-3.RLTS.T22695174A118590506.en. Retrieved 7 April 2021.
Gill, F. and D. Donsker (Eds). 2019. IOC World Bird List (v 9.2). doi:10.14344/IOC.ML.9.2. http://www.worldbirdnames.org/ retrieved 22 June 2019.

BirdLife International. (2016). "Tetrao urogallus". IUCN Red List of Threatened Species. 2016: e.T22679487A85942729. doi:10.2305/IUCN.UK.2016-3.RLTS.T22679487A85942729.en. Retrieved 7 April 2021.
BirdLife International. (2016). "Perdix perdix". IUCN Red List of Threatened Species. 2016: e.T22678911A85929015. doi:10.2305/IUCN.UK.2016-3.RLTS.T22678911A85929015.en. Retrieved 7 April 2021.
BirdLife International. (2017) [amended version of 2017 assessment]. "Gypaetus barbatus". IUCN Red List of Threatened Species. 2017: e.T22695174A118590506. doi:10.2305/IUCN.UK.2017-3.RLTS.T22695174A118590506.en. Retrieved 7 April 2021.

Gill, F. and D. Donsker (Eds). 2019. IOC World Bird List (v 9.2). doi:10.14344/IOC.ML.9.2. http://www.worldbirdnames.org/ retrieved 22 June 2019.