Crafts for kids makes intricate paper birds for their mobile and includes a free pdf printable.
Good for ages 9 and up.
Get the instructions here:
http://www.craftsforkids.com/projects/1200/1201/1201_2.htm
We bloom here adds feathers to her version.
Get the instructions here:
http://webloomhere.blogspot.com/2010/04/rainbow-of-birds.html
Ohoh blog makes hummingbirds.
Get the instructions here:
http://www.ohohblog.com/2015/05/diy-hummingbirds-paper-mobile.html
Small magazine shares a template featuring the birds and the bees and flowers too for kids to cut out and string together.
Get the instructions here:
http://smallmagazine.typepad.com/smaller/2010/08/small-projects-bird-mobile.html
Little fingers big art uses layers of paper to make the birds.
Get the instructions here:
http://littlefingersbigart.com/2013/05/10/decorative-hues-bird-mobile/
Our big earth cuts the birds out of scrapbooking paper and strings them together vertically.
The website is no longer available.