What is this!??

[Ray123]

I just noticed this on the base of my ducklings tail... what is it???

 

[Ratchnick]

Oil gland

 

[Ray123]

Oil gland

Ok thank you! I have been trying to figure it out but I had no idea what it could be

 

[CoriM]

I think you're looking at the oil gland. It's how the keep their feathers water-proof. I don't think you have anything to worry about.

 

[Isaac 0]

Uropygial Gland (Oil Gland)