Senbazuru (square)
Model by Unknown / traditional.
A pattern of crane models, joined together by head, tail and wings.
This pattern can be repeated by subdividing the paper more often.
This renzuru model can be folded with a thin (crane) or thick (flapping bird) neck and tail. The thin version is more difficult.
Paper & size
When folding a 3 by 3 pattern, and folded from a 26cm square, the resulting model ends up about 16cm wide, 16cm deep and 3cm in height.