Thanks everyone. The size of the dips have really surprised me, all are UF crosses from good parents.
We are overrun with squirrels also because of living with woods on all four sides and no one hunting them anymore. I do not have trouble with them digging up the plants, but the will bury acorns in the beds on occasion. I have more trouble with the birds than the squirrels. I do use milorganite to keep the rabbits out, this may be keeping the squirrels out also?