One of my geese has been plagued with sporadic limping this year. At first, I failed to see the teeniest, tiniest cut in the bottom of her foot; an avian vet spotted it.
Later, after a pricey vet visit and a round of meds, she started limping again, and I cringed. The next day, she was fine. I'm convinced she just stepped on something or landed wrong on her foot.
Hope you baby is okay!