Cleon
Legend
solitary, pair or family 2-8 not thousands..
The AD&D entry says gophers "live in large colonies burrowed into the soil of the plains", which suggests they're using gopher for a general-purpose burrowing rodent. As such, I'd like to leave the "thousands" in to include the more social species (e.g. prairie dogs).
Besides, if there's multiple gopher families in an area you'd count them together - it's not like a human city is considered an encounter with a single "house", even though an adventuring party usually only enters them one household at a time.
However, since I've separated out the Prairie Dog from the regular gopher we could give them separate Organizations.
The family size of 2-20 seems a bit too wide at the top for regular gophers, but fine for prairie dogs. The original AD&D gopher had No Appearing 2-5, which seems closer to a pouched gopher's litter size.
Let's see what Freyar and Shade think.