The Bird Barrier Holographic Repel Strips 2 in. x 25 ft. (sd-ft25) is great to prevent birds from flocking around and messing your orchards, crops, gardens, boats, docks, barns and even your home. It's 2 inches wide and runs 25 ft. of wide film flutters. The film flashes, crackles even with the slightest breeze. This product is a reflective holographic/iridescent film that alarms the birds flocking around your premise. You can simply cut the film to your desired length and hang it in the area that you are having problems with aggressive birds.
Bird Barrier offers a variety of Audio Deterrents to repel specific bird species Among them are the Bird Gard Pro programmable electronic repeller that uses a variety of species-specific distress signals and predator calls to send a "danger" alert to other birds in the area and the Zon Gun lightweight, portable, propane-fired cannon that emits automatic thunderclaps that deter birds and other nuisance wildlife.
Among the Visual Deterrent selection are products like Scare Eye Balloons with bright colors that appear threatening to birds, Away with Geese light unit that disrupts geese's ability to sleep and Scare Spiders that moves when activated by sound.
Fog Force and Migrate Taste Deterrents discourage birds by dispensing flavors that birds inhale or eat.
The strips work well but not perfectly. They work best in the sunshine as the key is light reflection. I have now purchased Bird-B-Gone to spread over the strips as well. Strips have reduced visits by the doves with fewer droppings. But this has not gotten rid of them entirely. I wrapped the strips around the fire escape railing. Strips are pretty for me to look at as well. A good first step. 2" is good, I would not recommend any thinner.