Specifications:

They are cast in Resin Bronze or White Resin Marble.
Height to the top of the wings: 140mm  (5.5inches)
Width from one edge of wing to the other:  140mm  (5.5inches)
Depth from edge of plinth to tip of nose or beak:  152mm (6 inches)
Weight: 1.1 kg (2.3 lbs)
Combined shipping weight: 4.8 kg (10.6 lbs)