Same idea, different birds
Both pigeon nets and bird nets are barriers made of light, strong mesh. The difference is in the birds they are meant to stop. Pigeons are fairly large, so a larger mesh works. Sparrows, mynas and other small birds can squeeze through that mesh, so they need a finer one.
Which birds do you actually have?
Before choosing a net, spend a few days noticing which birds visit and when. Pigeons tend to roost on ledges and nest in sheltered corners. Crows scavenge and pull at loose items. Mynas and sparrows look for small gaps to nest in, often in vents, pipes and window frames. Parakeets can peck at wiring and fruit.
Mesh sizes that work
As a rough guide, the mesh should be smaller than the smallest bird you want to keep out:
- Pigeons: around 40 to 50 mm mesh.
- Crows: a mesh of a similar size, with stronger cord so they cannot tear it.
- Mynas and sparrows: a finer mesh of roughly 20 to 25 mm.
Material and durability
HDPE and nylon nets are the usual choices. Look for UV-stabilised material so the net does not turn brittle in Chennai's sun, and for knotless construction, which stays tauter and is gentler on birds. Stainless-steel hooks and clips resist rust, which matters near the coast.
Different places, different fixing
A balcony net is usually fixed to the slab, walls and railing. A duct area needs netting cut around pipes and brackets while leaving service access. Windows need a net that does not block the frame's movement. Large sheds and warehouses use tensioned cables and frames. The right mesh and the right fixing method depend on where the net goes.
Humane netting
A properly fitted net keeps birds out without harming them. The risk arises when a net is loose, torn or has gaps that birds can enter and become trapped in. Choose a taut, complete installation and check it regularly.
How to decide
If your problem is mainly pigeons on a balcony or ledge, a pigeon net will do. If you have a mix of birds, or small birds nesting in vents and ducts, choose a bird net with a finer mesh. An installer who visits the site can identify the birds and recommend the mesh. It also helps to photograph the birds and the nesting spots before the visit, and to note the times of day they appear, so the recommendation is based on what is really happening at your home.
Related services
Further reading: Birds of India (Wikipedia)