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How to build an outdoor rabbit cage
Find a well-shaded and protected area of your yard to place the cage in.
This should be a spot that is best suited to your rabbit's needs. The location, in combination with the cage itself, will provide the shade the rabbit needs to keep from overheating in the summer and should also keep them out of bad weather in the winter.
Rabbits can get heat stroke because they only sweat on the pads of their feet. The only bigger danger than heat to outdoor rabbits is cold.