Let's make the breath weapon a cone (more standard). I'm not sure we'd need to give the stats for the advnced one; an underbar stating that Dex stays the same should be enough.
I'm not quite sure of the mechanics on the eye gouge. It sounds like it should only be a critical on a dive.
That all sounds good to me.
I'm thinking we should do something with the "During a dive, a hawkdragon can only attack with its claws and tail, but all hits are at +4 on the die, damage is doubled" bit of the description. Some variant of the Pounce special attack?
Revision #2:
Hawkdragon
Tiny Dragon
Hit Dice: 1d12+1 (7)
Speed: 30 ft. (6 squares), fly 100 ft. (good)
Armor Class: 16 (+2 size, +2 Dex, +2 natural)
Abilities: Str 6, Dex 15, Con 13, Int 7, Wis 14, Cha 10
Attack: Bite +5 melee (1d4-2)
Full Attack: Bite +5 melee (1d4-2) and 2 claws +3 melee (1d2-2) and tail +3 melee (1d2-2)
Advancement: 2-3 HD (Small)
Feats: Weapon Finesse (B) plus Multiattack ?
Combat
Breath Weapon (Su) - 10-foot cone of toxic vapours usable once every 1d4+1 rounds. All creatures inside must succeed at a DC 11 Fort save or be nauseated for 1d4+1 rounds. Hawkdragons and creatures with immunity to poison are not affected. The save DC is Constitution-based.
Eye Gouge (Ex) - If a hawkdragon scores a critical hit with a claw while making a swoop attack (see below), the target must succeed at a DC 12 Reflex save or lose an eye. Treat the target as permanently
dazzled if only lose some of their eyes, or
blinded if they lose all their eyes. The save DC is Dexterity based.
Protection From Arrows (Su) - continuous DR 10/magic versus ranged weapons?
Swoop (Ex): If a flying hawkdragon charges or dives at a foe, it can make a full attack with both claws and its tail, doing double damage with any attacks that hit: 2 claws at +5 melee (2d2-2) and a tail attack at +3 melee (2d2-2). If either of its claw attacks hit it can attempt an eye gouge (see above).
