Let’s make a flapping bird
, an easy classic model
Fold the paper in half - we're going to create a water bomb base
turn over, and fold diagonally
both ways, so we get a big x
open it 
bring those two edges together
and push down and make the shape flat
that's the waterbomb base
folde the first layer aline with the upper edge
bring the two shown edges aline
and just make the other side flat too
turn the model
filp the flap over
and repeat the last few steps
edge to edge
and bring the left over paper down
bring the edge aline with the shown line
outside reversefold along the latest creases like shown
form a head with a second outside reverse fold
and that is the flapping bird!
