Description
Birdmark is a clearly visible “scarecrow” that diverts the birds, preventing them from colliding with overhead lines etc.
Sun: The reflective properties of the Birdmark require maximum sunlight for day and night time effectiveness.
A UV Index of 3 or greater is best. During periods of heavy cloud cover or when the UV Index drops to 1 or less, some birds will challenge the diverters.
The Birdmark produces an initial light emission of 6 lumens per cubic meter which reduces to 1 lumen per cubic meter 1-2 hours after sunset.
Tests have shown that when the sun emerges the birds typically land for 2.5 minutes before emitting an alarm call or flushing from the roost area.