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Birds & Diseases

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Diseases Associated with Pest Birds:

  • Bacterial – Paratyphoid, Vibriosis, Salmonella, Listeriosis, Pasteurellosis
  • Fungal – Histoplasmosis, Candidiasis, Sarcosporidiosis, Blastomycosis
  • Viral – Encephalitis, Meningitis, Newcastle Disease, St. Louis Encephalitis
  • Protozoal – Toxoplasmosis, Trichomoniasis, American Trypanosomiasis
  • Rickettsial – Rickets

(Does not include diseases spread by parasites which live on pest birds)

The general public’s affection toward birds translates into a serious underestimation of the health risks associated with pest birds.

People who would never tolerate a colony of rats living in their attic will turn a blind eye towards pigeons entrenched in the rafters of their roof. Yet, in terms of disease and damage, the two pests are quite similar. In order to better understand how nuisance birds (or rats for that matter) spread disease we need to understand the basics of disease and transmission.

What is a Disease?

When normal body functions become disrupted due to a foreign invader or an internal malfunction, we call the disruption a disease. Diseases caused by foreign invaders are called infectious diseases. The invading agents that account for the majority of infectious diseases are grouped in the following five categories; viruses, bacteria, mycotic (fungal), protozoal and rickettsial. From a layman’s standpoint, the classification and definitions of disease are less important than how these diseases spread and how can we protect ourselves from them. Diseases need to be transported from place to place in order to spread. Birds are a perfect mechanism for spreading disease because they travel great distances, harbour over forty types of parasites and can host internally over sixty types of infectious diseases.

Fortunately, human interaction with most bird species is minimal, thus drastically reducing any health threat from most birds. However a few bird species have successfully adapted to our urban environment. The pigeon, starling and house sparrow have learned to succeed living in our buildings and eating our food. Their adaptation to our communities has brought them into close proximity to humans. These three non-native birds have become a major nuisance in our cities and they pose a serious health risk.

How Pest Birds Harbour and Spread Disease

The five types of infectious agents listed above can be associated with birds in the following ways: the disease lives in the bird and is passed on when the bird defecates; the disease lives in the birds surrounding environment and is spread by the birds lifestyle; the disease lives inside a parasite that the bird harbours. From understanding how the bird harbours diseases we can demonstrate the four ways the diseases are passed by the bird to humans.

Food & Water Contaminated with Faeces

The most obvious example is when the diseased bird directly defecates into a human food or water source. In the summer of 93, New York faced a health crisis when several hundred people came down with a mysterious ailment. The illness was traced to sea gull droppings in an old city reservoir. Health inspectors are quick to shut down a food processing plant if nuisance birds are found inside. Besides direct contamination, airborne spores from drying faeces in air ducts and vents can settle on exposed food and transfer disease. Several thousand cases of food poisoning (Salmonella) every year are attributed to this disease transmission route.

Inhalation of faecal dust

As bird faeces and/or the contaminated soil it rests on, dries or is disturbed, microscopic pieces break off and become airborne. These airborne particles can contain dormant fungi and/or bacteria. When breathed into the lungs, the warm, moist environment of the lung lining provides a breeding ground for the infectious agents. Common symptoms of this type of infection are flu like in nature: coughing, elevated temperature, restricted breathing and general body fatigue, and last roughly two to four days. The vast majority of the time, the body’s defences will contain the invaders even before minor symptoms appear but in a small percentage of cases, major infection causing long term disability and even death occurs. It is worth noting that there is no known medical cure for internal fungal infections.

Direct contact with faeces

Infection occurs when a worker or resident gets faecal dust or droppings in an open wound or cut. This commonly occurs when handling old rusty, sharp porcupine wire ledge products which are covered with bird faeces. The wound site becomes red, puffy and puss-filled. Antibiotics are often needed to cure the infection. In some rare cases, infection of the blood (Septis) or internal infection can also occur causing serious illness or death. Proper attire and care must always be used when cleaning a bird site or installing bird control products. If a cut or injury occurs, thoroughly wash and disinfect the wound and cover with a sterile bandage to minimise risk of infection.

Associated Parasites

Pest birds harbour ticks, fleas, mites and other ectoparasites. Parasites transfer disease in the following manner. The parasite bites an infected animal and sucks in blood containing the germ. When the bug bites its next victim it passes along the germ to the new victim. This occurs because parasites inject some of their saliva into the host when feeding. Over forty types of parasites live either on the birds, in their nests or in the places they roost. They are responsible for the transmission of several hundred viral and bacterial agents. These diseases include plague, encephalitis, pox and meningitis. Control of these parasites is a crucial phase of the bird control project.

Bug Busters can help in all areas of bird control in Perth including bird netting.

What our Clients say

We had an appointment scheduled very quickly and easily with Bug Busters. Aaron was on time and a true professional. He was knowledgable, open, and explained the whole process easily and clearly. Gave us a guarantee that our problems would be solved and if there were any future issues he would attend to them himself with the utmost expedience. Aaron was a real pleasure to work with and i feel significantly more comfortable after working with him. Would recommend their services to anyone who needed them.

Chey Bowers

I found the young man named Deryn who came to deal with our rodent problem to be extremely polite, personable and knowledgeable. He was on time and friendly and knew a lot about the behaviours of the rat species. I would highly recommend Bug busters and will definately them for future pest problems when they arise.

Sarah Garrett

Bugbusters installed termite traps around my house and shed many years ago. Every 3 months the traps are inspected for any termite activity. At intervals the house, ceiling and shed are are checked for termites. They have also dealt with wasp infestations and put rat baits in the ceiling.. Their operatives have always been helpful and friendly. I would recommend Bugbusters to anyone.

Margo Beilby

I have used Bug Busters on a number of occassions over the last 15 years. The last time only a few days ago.. Derryn was absolutely client focussed; professional; neat and cleaned up impeccably my jarrah floors that had just been re varnished. I have no hesitation to recommend this company.. Five stars from me. Paul Vic Park.

Paul Fernandez

Staff friendly and courteous and provide excellent customer service. Contractors efficient and knowledgeable and are always willing to provide extra assistance when required. Highly recommend this company for residential and commercial pest treatments.

Peta Santella