Chicken by default exports local transform.
Try 1 of my chicken exported scenes HERE, using this script :
from panda3d.core import Mat4,Vec3
import direct.directbase.DirectStart
a = loader.loadModel('trial1-AO')
a.reparentTo(render)
for c in a.getChild(0).getChildren():
c.hprInterval(2,Vec3(360,360,0)).loop()
camera.setPos(-6.29, -12.33, 11.52)
camera.setHpr(-28.31, -40.71, -2.11)
mat = Mat4(camera.getMat())
mat.invertInPlace()
base.mouseInterfaceNode.setMat(mat)
run()