Green-fronted lancebill (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Green-fronted lancebill" in English language version.

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amnh.org

Zimmer, John (1950). "Studies of Peruvian Birds. No. 55 The Hummingbird Genera Doryfera, Glaucis, Threnetes, And Phaethornis" (PDF). The American Museum of Natural History City of New York. Museum Novitiates: 3–4 – via AMNH Library Digital Repository.

BirdLife International (2016). "Doryfera ludovicae". IUCN Red List of Threatened Species. 2016: e.T22687035A93136807. doi:10.2305/IUCN.UK.2016-3.RLTS.T22687035A93136807.en. Retrieved 12 November 2021.
Maglianesi, Blüthgen, Böhning-Gaese and Schleuning (December 2014). "Morphological traits determine specialization and resource use in plant—hummingbird networks in the neotropics". Ecology. 95 (12): 3325–3334. doi:10.1890/13-2261.1. S2CID 84335456.{{cite journal}}: CS1 maint: multiple names: authors list (link)

BirdLife International (2016). "Doryfera ludovicae". IUCN Red List of Threatened Species. 2016: e.T22687035A93136807. doi:10.2305/IUCN.UK.2016-3.RLTS.T22687035A93136807.en. Retrieved 12 November 2021.
"The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. Retrieved 2019-12-05.

Maglianesi, Blüthgen, Böhning-Gaese and Schleuning (December 2014). "Morphological traits determine specialization and resource use in plant—hummingbird networks in the neotropics". Ecology. 95 (12): 3325–3334. doi:10.1890/13-2261.1. S2CID 84335456.{{cite journal}}: CS1 maint: multiple names: authors list (link)