Looks Like A Sore On Back Of Pekin Duck , Size Of Quarter ?

[HollyDuckFarmer]

my duck has that its from mating the feathers rub off ...

If from mating, then chances are your drake(s) are being too rough and you need to separate her.

 

[1234pekin]

If from mating, then chances are your drake(s) are being too rough and you need to separate her.

it is healing she has feathers there again

 

[Miss Lydia]

 

[Amiga]

Yay!