Newsletters and Brochures

Case Studies: canopy bird netting

Hamilton City Council

Bird droppings look unsightly and can damage buildings through direct chemical action. They can also block gutters and drains leading to water damage.

Birds can be a threat to human health, as a source of allergens leading to Allergic Alveolitis or as a source of pathogenic (disease) organisms, including:

Ornithosis (Chlamydia psittaci) (a condition passed directly from bird to man) Cryptococcus neoformans and Histoplasma capsulatum (fungi which develop in droppings and can produce lethal diseases in susceptible humans)

Campylobacter spp

Eschericia coli 0157 ,

Listeria spp,

Salmonella spp,

Vibrio cholerae - (food poisoning organisms which can be picked up by birds and then scattered around, contaminating water supplies, cattle pastures, and even human foods directly).

Bird droppings can be extremely slippery, leading to problems in areas where the public has access. Bird nests can block chimneys and flues, which can lead to serious build-ups of poisonous gases. Bird nests can be the source of many unpleasant insects, including:
blood-feeding insects such as fleas, mites, bugs, ticks and lice
fabric-damaging insects such as carpet beetles and clothes moths
stored food pests like spider / dermestid beetles and book lice
carrion-feeding insects such as house flies and blow flies.

Dried guano can enter buildings via contaminated air conditioning units on ledges, with associated risks to staff, and from insect infestation and direct inhalation of pathogenic organisms.

Birds can cause distress through their noise and the unpleasant smell of their droppings. Some large birds, such as gulls, may physically attack humans.

Ace Bird Proofing acknowledge some text and photographs kindly supplied by Sorex.

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