About a year ago, I bought a pair of walkie-talkies to use while birding; either between two cars or two groups walking a distance apart.  I recently heard that birders use a particular frequency on the FRS (family radio service).  I think someone said 22-11.  Is this correct?

Also, for those that have CB radios in their cars, what frequency do birders use on the CB (if any)?  Thanks.

Winger West
Millersville, MD