Uighur/Uyghur knife. I haven't seen one with such a chicken head before; lots of them have a pommel that might be stylised bird (perhaps even a chicken).
The scabbard is common for modern tourist Uighur knives. I don't think it's traditional.
Some relevant past threads:
http://www.vikingsword.com/vb/showthread.php?t=17377
http://www.vikingsword.com/ubb/Forum1/HTML/001565.html