Graduated them to watered down kibble a couple of days ago when I realized that they were going on 4 weeks, and my husky's pups were gnashing for solid food after only 3.
Mom hasn't weaned them off yet, but now that they're getting solid food she'll probably start working on it.

Unfortunately she gloms the pup's food if I don't stand guard over her, and securing her on the other end of the pen (it's divided into two enclosures) can prove... interesting (I'll definately have to photograph the event next time). She does *not* like being separated from her brood.