^Yeah. Their non-poison dps is weak.
Like I said, 1/3 of dryad damage is poison, so for dryads it's more like 167% vs light armour and 133% vs unarmored. Also, unlike gargs, hawks are very tanky. With animal war training, they're like flying grunts. Getting close to double the hp of gargs. So they're actually about as good at fighting dryads as gargs, if not better. When you factor in all of the above, gargs still have slightly more ehp/food and slightly more dps/food than hawks when fighting dryads, and they have their stone form tricks... but there's no substitute for the hawks' pure tankiness when there's heroes around.