Conservationists cannot consider nest-boxes to be a substitute for naturally occurring tree cavities, a study has suggested.
A study found the artificial nesting sites had higher humidity levels and poorer insulation than tree cavities.
Researchers also found some species, such as great tits, favoured nest-boxes while others, such as marsh tits, favoured naturally available sites. ...
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A study found the artificial nesting sites had higher humidity levels and poorer insulation than tree cavities.
Researchers also found some species, such as great tits, favoured nest-boxes while others, such as marsh tits, favoured naturally available sites. ...
Article here