Linkit muille sivustoille
- #254 The RSPB: News: Keep nest boxes simple, not stylish, says RSPB 13.11.2019
- http://ww2.rspb.org.uk/our-work/rspb-news/news/414752-keep-nest-boxes-simple-not-stylish-says-rspb
- "Materials and designs that might look attractive, such as ceramics and bright colours, are completely unsuitable for nesting birds as they’re poorly insulated and do not make the box inconspicuous to predators. Nest boxes with metal roofs retain too much heat and can have fatal effects for baby birds on warm, sunny days. Metal and plastic nest boxes also suffer from condensation causing baby birds to get damp and cold."
- pönttö turvallisuus muovi metalli materiaali
http://kaupunkilinnut.fi/?links=metalli
Cached: 2026-09-23 07:48:03 GMT