Having looked at the PH combat chapter, I don't feel like it really resolves anything.

Basically, the
provoking of opportunity attacks is pretty well conflated with the
making of opportunity attacks.
All the blurbs under individual actions and attack types read more or less like this:
"*
Provoke Opportunity Attacks: If you leave a square adjacent to an enemy, that enemy can make an opportunity attack against you."
or:
"*
Provoke Opportunity Attacks: If you use a ranged power while adjacent to an enemy, that enemy can make an opportunity attack against you."
(The opportunity attack section on pg 290 is mostly about making the attacks, with a couple of blurbs that are basically restatements of the above.)
You could concentrate on the bolded part and say, "Yep, that action provokes, period. Therefore it triggers the Fire Hawk Attack." Looking at the non-bolded part, you could say either "that only means you have to be adjacent to
make the attack, it still provokes". But you could reasonably say "No, it means the enemy has to be adjacent to provoke the attack in the first place".
There's one thing it might clear up though. I was wondering if, you go with the "enemy has to be adjacent" interpretation, what if the enemy is dazed or otherwise unable to actually make the attack? No matter how you read these rules blurbs, they don't indicate anything about the condition or the ability of the adjacent enemy. Just that they are adjacent.
Analyzing the "adjacent enemy not needed" interpretation - I'm still thinking that the potential 2d8 + 2xWis damage is not wildly out of line, when you consider 1) the first attack must hit to unlock the second (unlike, e.g., Twin Strike); 2) the druid must remain in human form (and within 10 squares, but that should be easy); and 3) the enemy often has at least some ability to deny the second attack by choosing a non-provoking action.
But on the other hand, I'm starting to pity the poor kobold slinger. For an artillery monster, who is not within shifting distance of melee range, there's just not really that much he can do that won't provoke. Total defense is about it, and that's no way to win a battle! (A controller at least has a hope of some sort of close attack or utility power option.)
So... I don't know.
