I have failed to find the meaning of your surname, BYRDIC. It does not occur in half a dozen surname dictionaries.
The closest I can come is byrdzić, a Polish verb meaning "muddle."
If you wish to find living persons named BYRDIC, try US SEARCH on the Internet. It has 81 hits, including a few redundant entries. If you have trouble getting onto that site, click on the following underlined URL :http://teaser.ussearch.com/teaser/teaser.jsp?adID=10002101&a...
[Mr.] Reg NilesRegNMINiles@cs.com