Take one of the felt bird shapes and sew on a button as an eye. Remember this must be very secure if it is to be used in a nursery. If you are worried about babies and buttons you could always use a toy safety eye instead.
Then using a back stitch sew a wing shape and a tummy.
Then pin the front and back felt bird shapes together.
Blanket stitch around the felt bird shapes. I think it is nice to use a contrasting colour.
Repeat these steps until you have as many birds as you want. I varied the colours of felt, buttons and thread I used.
Then thread them all onto a long piece of yarn.
Using a bead at the end to secure them on and a loop at the top to hang it from.