This section is from the book "The Boy Mechanic Vol. 2 1000 Things for Boys to Do", by Popular Mechanics Co.. Also available from Amazon: The Boy Mechanic, Vol2: 1000 Things for Boys to Do.
A handy seed and water container for a bird-cage can be made of a common spice tin. The receptacle can be filled without removal by simply taking off the cover. Thus the seed will not be scattered.
Ill: Spice Tin Attached to the Wires of a Bird-Cage for a Water or Seed Receptacle
The tin is attached by cutting a hole in the back as shown, and bending the side edges to fit over the wires to hold it in place. The bottom strip is a support which rests on the floor Of the cage and prevents the tin from slipping down on the wires.