"the Trjasuni (meaning shakers) with a short back, the wings carried below
the tail
which is broad and elevated at an angle of 45 to 70 degrees, with the back
of the
head carried in a direct line over the feet. The Trjasuni shake their neck
while they are standing in a solid stance."
Kazan
Archangel White
Urjupinski Trjasuni