That's a great question! Yes, many modern urban trash cans are designed with automatic closing lids specifically to help keep pests like rodents, raccoons, and insects out. It's a feature I really appreciate for maintaining cleanliness.
The lid typically uses a slow-close mechanism. After you lift it to toss your trash, it closes smoothly and securely on its own. This is crucial because an open or loosely closed bin is an open invitation for pests looking for an easy meal. The tight seal prevents odors from escaping, which is what attracts most animals in the first place.
From my experience, models with a foot pedal or motion sensor are the most effective. They allow for completely hands-free operation—you never have to touch the lid, which is more hygienic. The lid closes immediately after you step away or the sensor times out, leaving no window for a curious squirrel or crow to sneak in.
It's important to note that not all city bins have this feature. Classic dome-top or open bins are still common. For personal use, I highly recommend investing in a can with a reliable self-closing lid if pests are a concern in your area. Look for sturdy construction—heavy-duty plastic or stainless steel—so the lid mechanism and hinges hold up over time. A good automatic lid, combined with regular cleaning and secure bag tying, is your best defense for a pest-free outdoor space.