Drive away ravens: various options
Ravens belong to the Corvidae family (birds of prey), which usually infest a wide variety of industrial, commercial or private buildings all year round. In addition to causing damage, the ravens also cause great damage through the raven droppings they leave behind, which is associated with high costs and spreads pathogens. A plague of ravens in the garden can be very disturbing, which is why effective expulsion is necessary. Ravens and crows are visually similar. The crows are smaller than the ravens and both species can be driven away using similar methods.
How can you drive away crows?
Crows make a lot of noise themselves and often create a real spectacle. The pests themselves are very sensitive to noise. Loud noises are an effective way to scare away crows. You can use loud music, but this is annoying for the neighborhood and is not a long-term solution. Crows that are frightened with flares or firecrackers usually flee permanently. For this reason, electroacoustic devices are an effective measure to protect against crows. The birds are scared away without being hurt. Electroacoustic devices can be used wherever crows need to be driven away sustainably.
Electro-acoustic devices
The electro-acoustic device is set up to deter crows. The models are easy to assemble, program and can be expanded with additional speakers. The devices produce very realistic frightened cries of crows, which act as a warning signal. Crows need to get used to and are smart, which is why devices are available to avoid habituation effects. The pitch and volume can be varied with each repetition and ensures that crows fly away because they are frightened. Further information on the topic Bird deterrents.
Fight crows with ultrasonic signals
You can also drive away crows with ultrasound devices. These devices emit ultrasonic waves that cannot be perceived by humans. The crows perceive the ultrasound as a pressure wave, which is very unpleasant and ensures that you can get rid of crows. The ultrasonic signals are an effective and undetectable method that scares crows away.
What helps against crows?
If you want to get rid of crows, you can also combine several measures. Perfect efficiency is achieved when ultrasonic waves are sent along with the acoustic signals. If both measures are delayed, the crows will quickly move away. Alternatively, a bird scarer can also be used, which regularly fires warning shots and scares the crows. However, these warning shots with special ammunition cause loud noises, which can disturb the neighborhood.