| 摘要 |
The invention relates to a punched out sheet for use in making a bird-nesting box without using tools or other aids and to a bird nesting box made from the same. The sheet has an interconnected outer part and an inner punch-out part. The outersheet has a carrier handle and devices for adjustment and reinforcement of the entrance and exit hole of the box. The inner part has bipartite suspension devices, a surface device in the form of a ladder and a transverse device in the form of a guard against predators. |
