Using visual deterrents such as reflective tapes, discs or old CDs can help in keeping birds at bay.
Install netting to prevent birds from accessing your porch and establishing their nesting sites.
Consider placing bird spikes to prevent birds from landing and nesting.
Using noise makers can scare away birds without causing them harm.
A motion-activated water spray or sprinkler can deter birds effectively.
Maintaining cleanliness can discourage birds as it deprives them of food sources.
Avoid placing bird feeders which attract birds.
Some strong scents like that of certain soaps can repel birds.
Installing screens can act as a physical barrier preventing bird entry.
Strategic placement of porch decor can obstruct desirable landing and nesting sites for birds.
Placement of a fake owl or hawk can act as a mild deterrent as birds tend to avoid areas with predators.
Installing lights with changing patterns can deter birds.
Removing nests regularly can send a message to birds that your porch is not a suitable place for nesting.
When all else fails, seeking professional help is a suitable option.