- Having Gunderson as Blu's former last name, every Spix's Macaw family member is theoretically from the same family as Linda.
- Because Linda married Tulio, she might changed her last name to "Monteiro"
- However, Blu stated, "Tiago Gunderson, listen to your mother!", probably since he considered himself an independent member of the Gundersons, therefore he would keep the Gunderson name and pass it on to his children.
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