The movement is based on two servo motors--one to turn the neck and one to open and close the beak. The servos are controlled by an Arduino board programmed so that the neck and beak move in a random order.
I got some great inspiration from this site http://www.socalhalloween.com/Project_Raven.html, although his animatronic raven has many more degrees of freedom than Fawkes does.
Step 1: Materials
The body is based on a plywood cutout bulked out with foam.
The legs are 3/8" diameter aluminum tubes.
The feet are sculpted from black Fimo polymer clay, and were sculpted in-place around the perch.
The neck is a 1/4 in diameter aluminum tube attached to the neck servo on one end and the head on the other.
The head is again, based on a plywood cutout bulked out with foam. The eyes are glass beads, the beak is sculpted from Fimo. The upper beak is fixed; the lower beak is attached to the beak servo.
The skin of the bird is thin batting covered with a cloth mesh wide enough to poke the quills of the feathers through. Feathers were hot glued to the mesh. A wide variety of feathers are available on-line or at fabric or crafts stores.
The base and column of the perch is an old floor lamp. I cut the perch support from pine stock. The perch itself is a 1.5 in diameter dowel. I couldn't find any pre-made finials, so I turned the two finials and painted them gold.
The electronics: Two hobby servos: Hitec--a standard size for the neck movement, a micro servo for the beak. An Arduino Duemilenova microcontroller board controlled the two servos.