If you look up in any city or town, you will most likely see flocks of pigeons or seagulls congregating on the highest parts of office buildings, shops and homes.
There are two main reasons why a pigeon or seagull has chosen to move onto your property without permission. Initially these birds will have identified that some of the highest points on your property are very close to, or directly overlooking, their regular food source. Subsequently, they may have gone on to establish that flatter ledges, often lower down on the buildings, are conveniently sheltered from the elements and provide perfect overnight roosting or nesting sites.
Either way, as humans we are sometimes not comfortable living in such proximity to seagulls and pigeons. Many people claim they are noisy, dirty and destructive neighbours. To rid yourself of these unwanted guests, it is imperative to fully understand why these pesky birds have chosen your property above all others in the neighbourhood.