Flight cages are large cages that allow the inhabitants of the cages to have room to move about and stretch their wings. The construction of flight cages is generally lightweight wire mesh, so you can suspend them from the ceiling or contain them on another structure that lifts the cage from the ground. Budgies need flight cages that are longer than they are wide and tall, so that the birds can fly from perch to perch. A flight cage should be at least 20 inches wide to allow your budgie to fully spread its wings. The rest of the cage width and length depends on you and your plans for storing and placing the cage in your home or aviary.
Calculate the size of the cage you wish to construct for your bird. Lay out your wire and cut six pieces of mesh. These pieces will serve as the top, bottom and sides of your flight cage. Be sure and measure out the pieces of mesh to ensure your cage sides, top and bottom will be of equal size.
Flatten the cut pieces by bending the wire slightly with your hands. Manipulate the wire until the pieces are flat and straight.
Join the wire together, using the "J" clips. Place a clip every 3 inches and then use your pliers to secure the "J" clip into place. Don't be afraid to use too many clips--the more used when joining, the tighter the cage will be and the shape of the cage will also hold better.
Determine where you would like to place the main door of the cage. Cut out a door that is at least 5 inches tall by 3 1/2 inches wide. Use your "J" clamps to attach the door to the cage. Be sure to not attach the clamps too tightly as you want the door to swing freely upon opening. Use a small wire spring to affix the door closed.
Check the edges of the cage for any sharp points. File down any potentially dangerous edges or points with your file.
Wash the cage thoroughly upon completion of its construction. Allow to air-dry, and then equip the cage with appropriate accessories such as food cups, perches and toys. Place the cage on the stand or hang from the ceiling to keep the cage from residing on the floor.
Working with wire can cause you to scrape your wrists and hands on the wire. You can opt to wear bicycle gloves to protect yourself. You can purchase additional items when building your cage, such as door guards to slide over the wire edges. If you do not like using "J" clips, you can also use another type of fastener known as "rings."