(１２５)
Open both sides in the direction of the arrows.
(１２６)
Open both sides like this picture.
(１２７)
Then move the triangular part to the other side.
(１２８)
Move the part like this picture.
(１２９)
Then lower the head/tail, which you have folded to the side.
(１３０)
Lower the head/tail like this picture.
Then make creases neatly for one side of a bird-base.
(１３１)
After making creases, raise the head/tail as it is without folding it to the center.
(１３２)
Raise the head/tail as it is like this picture.
(１３３)
Then open both sides in the direction of the arrows.
(１３４)
Open both sides like this picture.
Then turn the paper over as it is.
(１３５)
After turning the paper over, take only the flap in the front and move it in the direction of the arrow.
(１３６)
Move the flap like this picture.
Then make a star-shape.
(１３７)
Make a star-shape like this picture.
(Also, make mountain-folds on four creases in the center.)
(１３８)
Then make valley-folds a little on the dotted lines.
(１３９)
Make valley-folds a little like this picture.
(１４０)
I rotated the paper.
Make a valley-fold again on the part which you have made a valley-fold.
(１４１)
Make a valley-fold again like this picture.
Proceed with the next steps while making the valley-fold.
(１４２)
Put the part, which you have made the valley-fold, between a wing of the completed crane and a wing of the uncompleted crane.
At that time, move the circled edges under wings of the cranes.
(１４３)
Put the part between wings and move the edges like this picture.
Then turn the paper over as it is.
(１４４)
After turning the paper over, put the other part between a wing of the completed crane and a wing of the uncompleted crane in the same way.
(At that time, move the circled edges under wings of the cranes as well.)
(１４５)
Put the other part between wings and move the edges like this picture.
