I found this fabulous company that carries a very unique selection of charms, dangles and pendants. They have a great selection of some different bird charms - I had to try some! They also had some charms in pewter (lead free) - they are discontinuing those but I wanted to try some anyways because of the selection of birds in that category. I hope you like them!
Please note that the pictures definitely make the charms appear larger than they are so do take note of the measurements. 25mm equals approximately 1 inch.