Birdseye Maple is not technically a distinct species of Maple, but rather, it’s a figure that’s occasionally found in Sugar Maple trees. The term "birds eye" is from a unique figure pattern giving the appearance of eyes. A board must be flat sawn to show these shapes, and not all maple trees will yield the Birdseye quality.
Also known as Rock Maple, White Maple, Sugar Maple, Birdseye Maple, Curly Maple, Hard Maple, Black Hard Maple
The figure is reportedly caused by unfavorable growing conditions for the tree. The Sugar Maple attempts to start numerous new buds to get more sunlight, but with poor growing conditions the new shoots are aborted, and afterward a number of tiny knots remain.