Chicken wire = sub-par work
Chicken wire isn’t in my repertoire of work stuff, I think it looks unprofessional. This looks like a DIY or do it yourself job and wouldn’t cut the muster at my place. This is especially true if it was the front of the home or business, for just a little bit of time and money please use hardware cloth. Square angles will assist in making the corners and the entire job look better. trust me.
Hardware cloth can be worked into straight lines, and also screwed into place or bent under shingles or tiles. Pigeons are generational and will continue for life to nest in areas of your home. As a result the birds must be convinced to abandon the spot and they will continue to roost on the higher peaks. If there are 2 story homes in the neighborhood, they will use those areas to keep watch. They will nest in areas that afford them opportunities to have their back.
Look for possible nesting areas.
In conclusion, discourage them, don’t feed them.