If it's a chicken then it's called "the parson's nose".
Parsons nose
A dock on a horse refers to the fleshy part of the tail where it attaches to the rest of the body. It is located at the base of the tail. The dock serves as a connection point for muscles that control the tail's movement and provides support.
It is called the horizontal stabilizer. The elevators are mounted on the tail end of it.
First the tail stock then the flukes are the part at the end of the tail.
The tail in the letter "j" is called a "descender." It is the part of the letter that extends below the baseline.
The Gray African Red Tail
If it is arugas eyes, they were placed by Hera on a birds tail now called a peacock
dove tail.
Grebes are small water birds similar to ducks. They do have a tail, but it is very short and stubby and not obvious when you look at these birds.
Yes, they will re-grow after the next molt.
Tail light lens, or assemble.
I'm pretty sure it's called their Dock.