These tessellations consist of birds and fish motifs in combination. As might be imagined, there are less examples of this type, due to the additional demand placed on the tessellation, simply stated as involving more lines. This aspect is discussed more fully in Essay 15, Are Two Motifs Easier Than One?
Birds and Fish 1 consists of 'finished' tessellations
Birds and Fish 2 consists of 'semi-neat' studies, these based upon a set of tiles, the construction of which will appear later