Description
CONSTRUCTION: Square and funnel-shaped barriers can be erected (as shown in Figures 1 6r 2). A metal barrier fixed to the rope or stick from which the basket is hung can keep the rats out because they are unable to climb around it. The rats are not able to cross a barrier with a radius over 18 cm and are not able to jump distances more than 70 cm vertically, and 80 cms horizontally, to reach the basket. The distance between the roof and barriers should be at least 25 cms. |