Size approx. 40*38*155 mm.
Birdseye maple is a rare and mysterious characteristic found in hard maple. It has a distinctive pattern that resembles tiny, swirling eyes disrupting the smooth lines of grain. It is somewhat reminiscent of a burl but it is quite different: the small knots that make the burl are missing.
It is not known what causes the phenomenon. Research into the cultivation of bird's eye maple has so far discounted the theories that it is caused by pecking birds deforming the wood grain or that an infecting fungus makes it twist. However, no one has demonstrated a complete understanding of any combination of climate, soil, tree variety, insects, viruses or genetic mutation that may produce the effect.
Items made with this wood tend to be more expensive not only because the wood is more costly but because it is harder to work. When working with bird's eye wood, it is advisable to take care in what tools are used, so as to prevent grain tearout. Also the more "eyes" there are in lumber, the weaker the wood tends to be.