I do a lot of those. At least one a week actually.
In this case it was the clients grandfather.
The subject matter was chosen for his love of eagles.
I was lucky in the client having a very good image of what she wanted and had no problems creating what she described.
Back in the 80's and early 90's I did tons of eagle tattoos. Nowadays I do maybe half a dozen a year.
It is sad really because they are beautiful and power filled creatures. I enjoy tattooing them a lot when people go for at least a semi-realistic look.