Sirrushes speak Sylvan and Draconic.
Stunning Roar (Ex): Every 1d4 rounds, a
sirrush can loose a sonic attack of such volume that it stuns all creatures in a 60-foot spread for 1d4 rounds if they fail a Fortitude
saving throw (DC 47, or DC 51 for a three-headed
sirrush). The DC is
Headloss Resistance (Ex): A
sirrush's thick bony plate protects its neck like a
shield and provides
resistance from effects that could normally behead it, such as a vorpal
weapon. When a
sirrush or three-headed sir-rush would otherwise lose its head, it instead makes a Fortitude
saving throw (DC 10 + 1/2 HD of attacker + attacker's Str modifier). On a failed save, the
sirrush's head leaves its shoulders normally, but on a successful save, the
sirrush is unaffected by the beheading. A
sirrush dies when beheaded; a three-headed
sirrush goes on fighting until all its heads are lost (the only penalty it incurs is one or two fewer bite attacks when it makes a full attack).