Nest-boxes no substitute for tree cavities, says study

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.
The findings are reported in the Forest Ecology and Management journal.
The team of scientists from Wroclaw University, Poland, and the Centre for Ecology and Hydrology, UK, wanted to produce data that highlighted the anecdotal evidence between tree cavities and nest boxes.

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