High-frequency bird repellent devices are effective at driving away birds, which is their intended purpose. However, these devices also tend to have unintended negative consequences. For example, if you or your neighbors own pets, the high-pitched noise emitted by these electronic devices will cause them distress and may even make them aggressive.

When it comes to keeping birds from doing their business on your porch rails, you have several DIY options and home remedies you can try: 

• Tie a fishing line from one end of the deck post to the other. Birds won’t be able to see the line across the railing, so they can’t land on it.  

• Hang wind chimes close by, which may scare birds away. 

• Apply a bird gel repellent to the railings, which contains smells that birds generally don’t like. Or, similarly, you can apply citronella or lemon oil around the railings, since birds don’t like strong smells.

Yes, it is generally safe to return to your house once the pest control professionals have granted permission. Keep in mind that you’ll only need to evacuate your home during extreme pest control treatments, such as whole-home fumigation, while more minor treatments don’t require leaving. When you return home, be sure to follow the pest pro’s instructions carefully, especially those surrounding wait times and safety precautions.

The lifespan of a bird's nest depends on the species. The building process can take from two days to three weeks. Once built, the nesting period for baby birds can last from two to ten weeks before they leave the nest. While most young birds are ready in two to six weeks, some predatory species may need up to two and a half months. Some species nest four to five times per year, so a nest could remain in use for several months. For specific information about a particular nest's longevity, it is best to consult a wildlife professional.