Construction
Nest boxes are usually wooden, though some for birds are made from a mixture of wood and concrete, called woodcrete. Metal nest boxes are also marketed, but these are generally unsuitable for outdoor use, as they can overheat in sun, and provide no insulation to cold.
Many nest boxes are cuboid and have a sloping roof, with a hinged top, side or front to provide access for cleaning, bird ringing or, when used for domesticated species, to give the breeder access to the young. Boxes may either have an entrance hole or be open-fronted. Some nest boxes can be highly decorated and complex, sometimes mimicking human houses or other structures. They may also contain nest box cameras so that use of, and activity within, the box can be monitored.
Read more about this topic: Nest Box
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