Study

Barred owls Strix varia use nest boxes across the USA

Actions

This study is summarised as evidence for the following.

Action Category

Provide artificial nesting sites for owls

Action Link
Bird Conservation
  1. Provide artificial nesting sites for owls

    A short 1984 review of several nest box programmes in the USA (Johnson & Follen Sr.. 1984) found that barred owls Strix varia appeared to successfully use nest boxes provided in a range of habitats. Owls nesting in nest boxes in Minnesota produced more chicks than those in natural nests (2.75 fledglings/nesting attempt for 12 attempts in nest boxes vs. 2.00 fledglings/nesting attempt for six attempts in natural nests); in Wisconsin, two nest boxes produced ten chicks over four years; in Michigan, a single box produced young in three of the four years it was monitored (1979-82). Boxes varied in design, but most were modified wood duck boxes, approximately 33 x 34 x 36 cm, with 18-22 cm entrance holes.

     

Output references

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