In the USA it is known as a double eagle, in Europe it is known as an albatross.
Albatros
Double-eagle
A double eagle (or albatross) is 3 strokes below par. For example, if you get 3 strokes on a par 5, you would have a double eagle.
double eagle is a brand of airsoft guns
A double eagle and a hole in one a double eagle is when your second shot on a par 5 goes in and a hole in one is when your first shot goes in
It isn't very rare for a golfer to get an eagle. This can happen on a par-five course. A double eagle is more rare.
Three under par on one hole of golf is an albatross or a double eagle.
A double eagle on a par 5, a hole in one on a par 4, and a lie on a par 3.
I would think a double birdie would just be called an Eagle. Double Birdie is probably just golf slang for an Eagle, the much more common term. There is a Double Eagle though which is probably even more rare than a hole in one. That would be a score of a 2 on a par 5.
Albatross or double eagle.
Answeryes the great auk is extinct