
Large-billed tern in flight, Inírida river, Colombia
Sorry for the poor shot, it was a "reflex shot" as it flew over our boat. Check out a photo from a better angle to appreciate how large their bill really is:
https://www.sdakotabirds.com/species/photos/large_billed_tern.jpg

The large-billed tern is a species of tern in the family Laridae. It belongs to the monotypic genus "Phaetusa". It is found in most of South America. It has occurred as a vagrant in Aruba, Bermuda, Cuba, Panama and the United States.
Similar species: Shorebirds And Allies
By Ferdy Christant
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Uploaded Jun 27, 2017. Captured Oct 22, 2016 07:17 in Unnamed Road, Inírida, Guainía, Colombia.