I found the idea of such a birdie on the wonderful Tatyana Dubinsky's blog (in Russian): "Primitive papier-mache". Used a small plastic bottle as a mould, crumpled a paper ball — the head — and attached it, made a triangle cardboard beak. Attached a paper cone at the rear to be used for tail feathers later. Covered with three layers of papier-mache (small pieces of white paper with glue), attached feathers. Finished by painting and gluing wiggly eyes.