Zolna kljuva fasado

Slucajno nasel visokotehnolosko resitev na netu.

STS-70 was delayed in 1995, when woodpeckers bored holes in the foam insulation of Discovery's external tank. Since then, NASA has installed commercial plastic owl decoys and inflatable owl balloons which must be removed prior to launch.

http://science.ksc.nasa.gov/shuttle/missions/sts-70/woodpecker.html

Tako da teorija, da naj bi bile spodaj mravlje ne drzi.