Bye Bye Birdie DUAL Milking Shed A4 - 210mm x 297mm

A4 - 210mm x 297mm

prevents escape of the trapped magpie

Frequency: 15 - 25 Khz

Optional predator bird cries and harassment sounds with adjustable volume control

Lift all the hanging door wires up and clip them in open position

Bye Bye Birdie DUAL Milking Shed A4 - 210mm x 297mmThe Bye Bye Birdie Dual works by creating invisible magnetic fields. This confuses birds, as they depend on the earths magnetic field for determining their sense of direction. Birds simply avoid the disturbed area. Sold in pairs with magnets of opposing polarity. BYE BYE BIRDIE (BBB) Features: safe for birds, pets, people & the environment. does not scare, trap or injure birds. uses no electrical power, so it costs nothing to operate needs no