Feral pigeons gathering on a city building
Bird Control

Feral Pigeons, Public Health and Why Bird Netting Works Best on Buildings

Urban pigeon numbers keep rising, and droppings and feathers raise public-health concerns. It pays to net a building before birds settle in, not after.

Pigeon flocks are a public-health concern, and bird management on buildings matters more than ever

Feral pigeon numbers in Taiwanese cities keep growing — in parks, on campuses, on apartment blocks and office towers alike. Recent press coverage notes that beyond the mess they create, pigeon droppings and feathers may carry a range of pathogens, putting public health back in the spotlight.

What problems do pigeon flocks cause?

Infographic of common pigeon problems
Common problems: fouling, mess, blocked drainage and hygiene risk.

Reporting on the issue points to several recurring management problems:

  • Facades, roofs, balconies and equipment fouled by droppings.
  • Accumulated droppings driving up cleaning and maintenance costs.
  • Blocked drainage outlets, gutters and plant.
  • Feathers and droppings affecting environmental hygiene.
  • Possible pathogens in droppings, so authorities advise against direct contact and recommend personal protection when cleaning.

For hospitals, schools, food plants, logistics centres, office towers and residential communities, reducing long-term roosting has become a real part of building maintenance.

Prevention beats clean-up

Many buildings only act once droppings have built up. But washing facades, removing droppings, repairing corroded equipment and disinfecting regularly all cost significant labour and money.

Putting suitable bird-control measures in place before pigeons establish a fixed roost is usually more efficient, and keeps later maintenance spend down.

Bird netting: protection and humane management

Common bird-netting mesh sizes
Common mesh sizes: 2.4 cm diamond (green) and 2 cm (grey).

Bird netting is one of the most common and well-proven solutions in building bird control. It is not designed to harm birds: it simply stops them entering or perching in a defined area, without affecting the use or appearance of the building — a humane measure that keeps working long term.

Typical installation locations include:

  • Plant roofs
  • School corridors
  • Community courtyards
  • Building light wells
  • Balconies
  • Skylight canopies
  • Rain hoods
  • Air-conditioning platforms
  • Stairwells
  • Car parks

Material, twine diameter and mesh size are specified per environment, balancing safety, appearance and durability.

Public-health background in this article draws on Yahoo News / UDN coverage of the feral pigeon problem in Taiwan.

Let's Work Together

Need advice from a specialist?