Linkit muille sivustoille
- #407 Preventing Bird Deaths from Open Pipes (Death Pipes) | Partners in Flight 1.2.2020
- https://partnersinflight.org/resources/death-pipes/
- putki turvallisuus
- #402 Death By Pipe: Birds In Crisis 28.1.2020
- https://www.fws.gov/Cno/conservation/MigratoryBirds/DeathByPipes-final.pdf
- putki turvallisuus
- #401 Open Pipes: A Hidden Killer for Birds - Sonoran Joint Venture 28.1.2020
- https://sonoranjv.org/open-pipes-hidden-killer-for-birds/
- putki turvallisuus
- #400 Bird Death Pipes 28.1.2020
- https://partnersinflight.org/wp-content/uploads/2017/03/Partners-in-Flight-How-to-Cap-Pipes-to-Prevent-Bird-Deaths.pdf
- putki turvallisuus
- #398 Location of Bird Nests in Vertical Metal Pipes in Suburban Built-Up Area of Warsaw 27.1.2020
- https://bioone.org/journals/Acta-Ornithologica/volume-35/issue-2/068.035.0203/Location-of-Bird-Nests-in-Vertical-Metal-Pipes-in-Suburban/10.3161/068.035.0203.full
- Tiaiset, leppälinnut ja pikkuvarpuset pesivät avoimissa pystyputkissa. "The preferred diameter of pipes increased with the size of the bird species as measured by the tarsus length -- This is related to the mechanism of bird locomotion up and down inside the pipes. In too broad or too narrow pipes birds are limited in climbing on a tube surface. Moreover, narrow pipes may decrease the breeding success by reducing the space for young, as it was pointed out for the Great Tit in the study area."
- putki pesintä talitiainen sinitiainen kuusitiainen leppälintu pikkuvarpunen
- #397 Bird lovers open up about death traps hidden all around us | Local news | tucson.com 27.1.2020
- https://tucson.com/news/local/bird-lovers-open-up-about-death-traps-hidden-all-around/article_82aea915-3fe5-597b-8ce5-611a3cef7e14.html
- Avoimiin putkiin kuolee Yhdysvalloissa vuosittain vähintään miljoona lintua.
- turvallisuus putki Yhdysvallat
http://kaupunkilinnut.fi/?links=putki
Cached: 2026-09-21 07:05:11 GMT