First of all, make a use of flexible tape and measure the dimensions of your bird
cages and relocate these measurement and dimensions to the slaughter paper with the help of pencil or pen. There should be some seam left in all the sides. These can be done directly without measuring it but if you are not sure then you can make a use of tape for measuring seam around the bird cages. This margin lies within the range of 0.25 to 0.5 inches. Then cut the market butcher paper and put it on the cage with the help of light weight on its surface. Now make a use of sewing scissors and cut down an individual layer of fabric for each side of the cover of bird cages. There are total five cut piece are required, one for the top portion, two for side portion, one for front portion and last for the back portion. In this way, all the sides of the cage are covered. However, it would look better if the pieces are sewed with color combinations.