A society in Noida often has both problems and buys one strip for both. The lighter strip bends or gets pulled off. The heavier strip is wasted on a pigeon ledge.
Monkey spikes
The monkey strip is polycarbonate, and it is the heavier deterrent. It goes on balconies, compound walls and rooftops where an animal can grip and pull. Order it by length and by the surface it will be screwed or stuck to.
Bird spikes
Bird spikes come in two materials. Polycarbonate for ledges, AC units, signage and parapets. SS 304 when the same bird job has to last outdoors for years. They are not sold as the monkey strip with a different label.
If the opening of the balcony has to be closed, that is bird net, not spikes of either kind. Sector 9, Noida. 9910238277.