What Can You Do With a Piece of Paper? Sliceforms
Birds There are two sizes of Birds. These models will collapse, but not in the usual Sliceform way. (Strictly speaking, they aren't Sliceforms.) The first Bird to come along was the smaller one which is part of a set (Things on Wings) that includes a Butterfly and a Dragonfly as well. You can make some wonderful cards with this Stamp Set. Check out the Cool Projects for the small Bird and the larger Dove.

The smaller Bird is quite tiny, so you may want to start with the larger, Dove Ornament, version.