The majority of DNA tests in bird can be done from eggshell
On eggshell, we extract DNA based on blood vessels that remains on the eggshell after hatching.
Collect the eggshell as soon as the chick hatched.
Let the eggshell dry completely.
Put the entire eggshell in our collection kit or in an envelope. Tape the envelope to be sure, eggshell fragment cannot drop out.