Breeding Family Science Sweden 
10,000 Birds
MARCH 3, 2020
The source of this ranking, BirdLife International, lists Bolivia as currently having 1,439 bird species, including 18 breeding endemics. This is more than eBird reports–a checklist generated from the citizen science database lists only 1,413 species. This unfortunately happens with the large Tanager (Thraupidae) family here.
10,000 Birds
MAY 19, 2011
Itcher birds, migratory members of the tern family. Loons hardly ever fly when they are on their breeding grounds or their winter-water, but the migration is for many loons a non-trivial distance. Annals of the New York Academy of Sciences, 1046 (1), 282-293 DOI: 10.1196/annals.1343.026 Specifically, Itcher Tern. Image source.
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