I have read about the 6-7 week releasing too. But in my yard I always let go adult Bobs early May because I have picked my breeders and let the rest go. This is far from ideal Bob habitat but every yr late Aug-sept. a brood of bobs about 8-10 wk old
shows up. No native Bobs around my area in CT.
Are they ones born and brooded in the wild surviving? This is what I'm wanting to do is release a few around my house where I can keep the varmits thinned way down. We do have a few wild coveys around hoping they will meet up with the wild ones and increase some numbers.