Bunch of Birds 
Aperiodic tiles Danzer triangles
The “Danzer Triangles” discovered by Ludwig Danzer in 1996 are an exceptional case of aperiodic tiling with 7 fold symmetry.
Also very difficult to make figurative given the narrowness of 4 of its 6 triangles.
Any three deformations: one multiplied by 8, one multiplied by x 6 and one multiplied by x 4.
The angles are multiples of 180° divided by 7, i.e. 25.714°
NICOLAS 2014
