Here are some cubbies built against large boulders with poles leaned against to support the brush. The brush or boughs helps to weather proof the cubby to keep the trap working during periods of snow. The bait is usually wired in the top center of these cubbies, some are double ended so the cat can see clear through. With double ended cubbies a trap or snare is placed at each end.
Other types of cubbies
This cubby was made where a large tree had fallen behind two other trees. There was a dead stub nearby with the bark still clinging to it, this bark was peeled of in large slabs 1'X2' and placed along the sides and over the top to weather proof the set.