David Andreas De Rivera Tønnessen

Joined: Jun 21, 2016 Last Active: Dec 01, 2022 iNaturalist

Prospective grad student, birder since early childhood, member of the Colorado Bird Records Committee, author of "Field Marks" in the Colorado Birds journal. I am particularly interested in evolution, hybridization, migration, and bioacoustics, and besides birds am relatively well-versed in plants and marine mollusks. I currently live in San Cristóbal de las Casas, Chiapas MX.

Multilingual including Spanish and French. Feel free to reach out: davidtonnessenx@gmail.com
On social media, I'm most active on my instagram: @intrepidbirder

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