Originally posted by Xea:

Op is right, this does happen but I don't mind it -- first noticed it with greydwarves in the BF. You can sneak however and if your skill is decent they will stop going for you

Yea usually due to making noise an enemy group will spawn a distance away and wander up to you. You can avoid it by leaving the area or sneaking successfully though that may depend on the lvl of sneaking.

Meadows it's Greylings, Black Forest it's Grey Dwarves, Swamp I think would be drauger or skeletons and perhaps the green blobs, Mountain is usually drakes and sometimes wolves, plains is fulings and mistlands I think is just seekers though I found that gjall can aggro from some distance if you are making too much noise.