My male Pekin has a growth at his tail feathers looks like a very large abscess any help would be appreciated

[Dgorman]

My male Pekin has a growth at his tail feathers it looks like an abscess any help with this problem is appreciated​

 

[Patiocoturnix]

My male Pekin has a growth at his tail feathers it looks like an abscess any help with this problem is appreciated​

Can you get pictures?

 

[Dgorman]

Here is a picture of the duck

 

[p4PaDuck]

Is it hot? does it have little feathers that look like they are wet and stick together? If it is hot it means there is an infection. If not and it is oily to the touch it is the ducks oil gland. Can you get a better full body picture and circle where the abscess is?

 

[Miss Lydia]

Could what your seeing be his preen gland? please post pictures.
https://vcahospitals.com/know-your-pet/preening-or-uropygial-gland-in-birds