I was completely mesmerised by the swallows in Portugal, and while playing around with some origami paper, I came up with this simple design for an origami swallow. It is based on the famous ‘crane base’ (steps 1-7), and implements many folds used in the standard Orizuru crane (inside-reverse folds for the wings, narrowing the bottom two flaps, etc).
Two diagonal valley folds, and two horizontal mountain folds.
Push the diagonals together along the valley folds.
Flatten, keep the open sides at the bottom.
Fold the open edges inwards (on both sides).
Fold the top triangle down.
Undo the previous fold.
Open the two flaps and fold the inside triangle up (on both sides).
Open the four sides.
Close and flatten along the edges previously not touching.
Fold along the bottom diagonals.
Open the two wings with an inside reverse fold. This is a free fold that determines the angle of the wings.
Fold open the v-shaped tail. This is another free fold.