Is this frostbite?

[Quacking ducks]

Hi I was wondering if my duck might have frostbite. I’ve never dealt with this before. There are a few dark spots on her flippers. Does it look like frostbite? Thank you

 

[azygous]

No. Frostbite turns the tissue white, then it blisters and swells, then it dies, turning black, but not for a week or so.

 

[Quacking ducks]

No. Frostbite turns the tissue white, then it blisters and swells, then it dies, turning black, but not for a week or so.

Ok, thank you