Avoid south-facing birdhouses – for the nestlings’ sake
Ten-day-old baby birds are able to maintain their regular body temperature despite nest box temperatures of 50C° or above. Researchers at Lund University in Sweden can now show that nestlings pay a high price for regulating their body temperature: they grow less. Therefore, the recommendation when putting up a nest box should be to avoid hot, south-facing locations and choosing a spot in the shade
https://www.lunduniversity.lu.se/article/avoid-south-facing-birdhouses-nestlings-sake - 2025-12-17
