Not a Chimera: Need a Monster

[Seatbelt]

I'm running Red Hand of Doom: Pathfinder Style and I'm running the Chimera Attack on p38 of the book. Due to shenannigans the party has already fought a Chimera and it retreated. There are anywhere from 5-7 party members. We have Cleric McHeals Stuff/with a bow, Dwarf Druidbeard, Possibly Scorchy the Sorcerer for spellcasters. We have a dedicated archer fighter, a melee inquisitor and a Half Orc Fighter With a Hammer, and a human shield-fighter who won't be able to make it tomorrow.

I'd like them to fight a monster other than a Chimera, but with similar flavor - or maybe a couple of weaker flying monster things. I'm not familiar with PF monsters. Does anyone have suggestions?

Edit: Would 2 Wyverns be too tough? They are the right flavor of monster.

[Darrin]

I'd try a pair of manticores. CR 5 + 5 = 7, so it's in the same neighborhood.

[Seatbelt]

Thats the other direction I was thinking. Thank you. :)

[Anxe]

Winged hydra?