I recently finished this custom order of four birds: (clockwise from top left) Carolina Wren, Goldfinch, Cardinal, Eastern Towhee. They are 8" x 6" each and the fabric was fused to a thick, double-sided interfacing, like what I use when I make quilted postcards. Then the fabrics were stitched down. Because the eyes were small, I used black beads for three of them (the towhee has a white sequin behind the bead), and I used a small white bead on the goldfinch.
The customer supplied the photos and plans on displaying them seasonally.