Though these are difficult to install they will make you roof impossible for birds to land on and will eliminate crow on your roof.
How to deter crows from roof.
Deterrents frighten birds away using visual repellents and noisemakers.
Crows eat a wide variety of foods but i doubt you have worms on your roof at least not the usual sort of worms.
Use garbage cans with tight fitting lids and put them in a secure area.
Install bird spikes on roof lines or fences.
Most of the options below can even be used to deter birds from other areas of your property.
How to prevent the crows from coming back to your roof.
Bird spikes remove areas where crows can land by preventing them from being able to find footing.
6 ways to stop birds from landing on your fence and roof.
While getting rid of crows may seem like a mission in and of itself keeping them away is a whole other story.
How to keep crows away.
You can also play predator or ultrasonic sounds to repel birds.
Chemical repellents contain methyl anthranilate anthraquinone methiocarb which repel birds by causing irritation or affecting their nervous system.
Perch repellant gel this special gel feels sticky and tacky to birds and is usually applied to ledges so birds feel uncomfortable and fly away.
The crows could be using the roof to crack nuts.
There are multiple ways to scare and deter birds from landing on your fence and roof.
Bird spikes come in strips or bunches and can be easily installed as a permanent way to deter birds from landing.
This includes electronic devices like a motion activated sprinkler predator decoys and aluminum foil tapes.
Try spikes or bird spiders if you want to keep a few birds off the roof or use bird netting to keep a whole flock away.
Crows can be a nuisance and very hard to deter because they are both fearless and smart.
To prevent crows from returning make your property less attractive by.
Crows are adaptive and very smart so you will need to switch out methods and use combinations to keep these birds on their toes and away from your home.
Anti roosting strips bird spikes these strips are often put on ledges of commercial buildings.