Step 1:
The other side of this paper is white.
Prefold in half over the four lines.

Step 6:
Fold this edge downwards.

Step 5:
Prefold.

Step 2:
Valley-fold over the 2 lines at the bottom right, mountain-fold over the 2 diagonal lines. And valley-fold over the 2 lines at the top left.

Step 4:
Squash-fold.

Step 3:
Fold one flap upwards.

Step 10:
Fold the triangle flap to the inside

Step 8:
Fold the triangle flap upwards.
Repeat steps 4 to 8 on the other three flaps.

Step 9:
Pull open.

Step 7:
Press the edges downwards.

Step 16:
Fold over these two lines.

Step 15:
Fold over this line.

Step 12:
Bookfold one layer to the left, do the same on the backside.

Step 11:
Close the model again.
Repeat steps 9 to 11 with the other three triangle flaps.

Step 14:
Press these edges flat

Step 13:
Fold one flap to the left

Step 21:
Open the tip.

Step 19:
Make an inside reverse fold

Step 20:
Fold the leg in half.

Step 18:
Pull one edge upwards.

Step 17:
Make one zig zag fold on the tail wing.

Step 22:
Fold the tip to the right.

Step 28:
Fold the tip outwards

Step 25:
Fold this spot inwards.

Step 26:
Open the tip

Step 24:
Press / fold both tips downwards, see arrows, and fold the model in half.

Step 23:
Fold the leg in half one more time.
Repeat steps 19 to 23 on the left.

Step 29:
Fold both corners inwards.

Step 27:
Fold over this line.

Step 30:
Press the edge on the back of the head inwards.
And bend / press both legs to the right.

Step 31:
Press the back of the bird flat.