you won't do much for the population with only 30 birds...and plus if you don't hunt those birds right away they will be coyote food after abotu the first week...trust me been there done that...they are fun to rase and great when you hunt them right away but if you want to start getting the population that much bigger you got to make better places for them to escape danger and add about quadruple your bird count...but maybe you will get lucky