Dragonnel (CR 4)

Large Dragon
Alignment: Always neutral
Initiative: +5; Senses: darkvision 60 ft., low-light vision, scent, Listen +12, and Spot +12
Languages: Draconic

AC: 16 (-1 size, +1 Dex, +6 natural), touch 10, flat-footed 15
Hit Dice: 6d12+6 (45 hp)
Fort +6, Ref +6, Will +6
Speed: 40 ft., fly 90 ft. (average)
Space: 10 ft./5 ft.
Base Attack +7; Grapple +15
Attack: Bite +9 melee or claw +4 melee
Full Attack: Bite +9 melee and 2 claws +4 melee
Damage: Bite 2d6+4, claws 1d8+2
Special Attacks/Actions: Roar
Abilities: Str 19, Dex 13, Con 12, Int 6, Wis 12, Cha 10
Special Qualities: immunity to magic sleep effects and paralysis
Feats: Ability Focus (roar); Alertness; Improved Initiative
Skills: Hide +6, Listen +12, Move Silently +10, and Spot +12
Advancement: 7-12 HD (Large); 13-18 HD (Huge)
Climate/Terrain: Temperate hills
Organization: Solitary, pair, family (2-5), or pack (5-20)
Treasure/Possessions: Standard

Source: Draconomicon

A dragonnel opens combat with its roar, hoping to frighten would-be opponents. Once engaged in battle, it fights fearlessly, using its claws and bite to shred its enemies.

Roar (Ex): Once per day, a dragonnel can unleash a mighty roar. All enemies within a 30-foot-radius spread who can hear the dragonnel must succeed on a DC 14 Will save or become shaken for 1d6 rounds.