mixed up "naissant" with "naiant".

For the bird charges, I think you mixed up "naissant" with "naiant". Naiant would be the correct term and it means "swimming". Naissant means "being born" or emerging from the base or somewhere else on the shield.

(Quite possibly - I need to look into this!)

Start by searching the repository for the bird-charge terminology and the uses of "naissant" and "naiant". Verify the heraldic meaning in the issue, then update the incorrect bird-charge wording; done means the relevant bird output uses "naiant" for swimming and no incorrect occurrence remains.

Written by the indexing model from the issue text.