Warpriest of Irori interaction with Tengu Natural Attacks

[Ser Clay]

Just making random characters I've been thinking about and I came across an interesting interaction.

Tengu have a racial trait substitution that allows them to pick up a pair of Claw natural attacks (1d3+str) in addition to the Bite natural attack they already get. Taking the claw trait grants you a pseudo-Improved Unarmed Strike that functions when you use the claws, and a Warpriest of Irori's favored weapon for the Sacred Weapon ability is Unarmed Strike.

Warpriests also get an extra bonus Weapon Focus at level 1 to apply to any weapon. You should be able to select the Bite weapon, allowing it to benefit from the Sacred Weapon benefits as well right? Essentially making both claws and the bite do 1d6 starting at level 1 instead of 1d3?

It doesn't really seem game breaking, I just want to make sure the interactions are working like I think they are, and if so what would be the best way to build upon this as the character leveled? As far as I can tell the Bite and Claws are Finesseable? Any feedback is appreciated.

[Imbicatus]

No, the claws trait counts as IUS for the purpose of feat prerequisites, but they are not unarmed strikes, they are still natural weapons. You would need to take weapon focus in claws and bite to get sacred weapon benefits on both.

[Evilgm]

Apsu, the LG Dragon God, has Bite as a Favoured Weapon, so you can take WF Claws and have the d6 in all three attacks.

[Kalari]

Excellent :D Saves me a feat. Thank you

[Ser Clay]

Thoughts on building up the Panther Style chain starting from 5 onward?

I think it would look something like:

Angry Bird

1:Weapon Finesse(Dex is 18, Str is 14)
1:Bonus:Weapon Focus Claws
3:Combat Reflexes
3Bonus:Power Attack or Panther Style
5:Whichever of the two not chosen as the level 3 bonus feat.
6Bonus:Panther Claw(Wisdom 16, Str is 16 due to +2 Belt)
7:Panther Parry? Or Rending Claws?

Its not groundbreaking DPR but it looks like it might be kind of fun to play. Any more thoughts/suggestions?