There is no stated link between Patronuses and animagi
In canon there appears to be some kind of “one animal per person” rule. The only people where we know both their animagus form and their patronus are James Potter (stag) and Minerva McGonagall (cat), and in these two cases they match. Additionally, Remus Lupin, a werewolf, has a wolf for a patronus and Dumbledore, who is very close to Fawkes, has a phoenix.
That’s true. But to me the evidence suggests that “Harry can’t create an animal Patronus because he sees that animal Patronuses work through self-deception” rather than “Harry’s Patronus animal is a human”.
In canon there appears to be some kind of “one animal per person” rule. The only people where we know both their animagus form and their patronus are James Potter (stag) and Minerva McGonagall (cat), and in these two cases they match. Additionally, Remus Lupin, a werewolf, has a wolf for a patronus and Dumbledore, who is very close to Fawkes, has a phoenix.
That’s true. But to me the evidence suggests that “Harry can’t create an animal Patronus because he sees that animal Patronuses work through self-deception” rather than “Harry’s Patronus animal is a human”.
Unrelated conclusion: fursonas are HP canon.