House Sparrows and the Damage They Cause

It is quite easy to identify these birds, since they are around 5.75 inches long and when it comes to the male, it usually has a black bib, some white cheeks and a chestnut mantle around him. The female, on the other hand, has dingy-gray breast and a buff eye strike.

These sparrows, primarily, eat seeds, garden plants and some grains as well insects, which make up for two thirds of their diet when they are young. Sparrow populations usually grow around habits where humans are living due to the amount of food we usually waste away. Things such as fast food leftovers, bread crumbs, garbage with food in it, and so on. This might be incredibly low amounts of food for us, but for them, it’s like a buffet.

They usually breed around the months of March to August, but they can do it on any month at all. Furthermore, the house sparrow doesn’t have a recognized migration pattern, it just usually stays around 2 to 6 km away from where it initially hatched. They can move a little more than that to breed or feed, but it isn’t much.

Bird Damage 

Because sparrows can reproduce at any time of the year there isn’t a shortage of them to be found. They do however populate the most between March and August. They can lay between 3-7 eggs at a time. They hatch anywhere from 10-14 days after the incubation period. They then leave the nest after a nurturing time of 15 days.

Because of this fact they tend to travel in packs. This can cause a huge annoyance with all the droppings they leave on cars, sidewalks, and buildings. This makes for a huge janitorial issue for businesses. Although, they are huge seed eaters they have adapted to American society and they tend to eat from garbage cans. These bold birds won’t hesitate to mosey on up to an outside restaurant table and partake in your leftovers.

House Sparrows can become a serious problem when they gain entry into supermarkets, food process, big box stores, strip malls and related structures.  They will produce droppings on floors, shelving and product.  

Because house sparrows love to eat seeds primarily, they tend to flock to farms and feed off their grain in the field and in storage. They cause extreme damage to crops by pecking away at the seeds, the flowers, vegetables, and maturing fruits. This interferes with the production of livestock as well. Mostly with chickens by consuming and contaminating their feed. Fecal contamination on farms can result in huge monetary losses.

Sparrows love to congregate in large supermarket parking lots, industrial buildings, factories, and feed lots. These birds can sometimes be seen flying inside these large big box stores. They build nest up in their building rafters and ceilings. This is definitely bad for business. They also can cause structural damage to buildings by pecking away at the foam insulation. The uric acid that builds up from their droppings can cause structural damage as well. They also make for a potential fire hazard with their nests being placed in vents, gutters, and on window sills. They also can lead to structural water damage issues.

The best way to make sure you don’t have any of these problems is to hire a professional bird exclusion expert who deals with this every day. Bird management professionals can help you manage and eliminate all your bird related problems. Bird control experts have experience in the field of controlling infestations of these birds in your agricultural areas, public places, and buildings along with around your house.

Dangerous Health Conditions

While they mostly are a danger to structures, they like most birds, can also cause many health risks. The bacteria, fungal agents, and parasites they carry are harmful to humans. Some of the main diseases caused by sparrow droppings are histoplasmosis, cryptococcosis, toxoplasmosis, and encephalitis just to name a few.

Histoplasmosis primarily affects the lungs but isn’t limited to just that organ in some rare cases. Cryptococcosis in the form of meningitis affects the brain and can be very deadly. Toxoplasmosis is a parasitic infection and said to be carried by up to a third of the world’s population, it is often asymptomatic. Encephalitis is the acute inflammation of the brain and can be very deadly. Sparrows like all birds also can cause salmonella infections. While it usually isn’t life threatening, it is something you won’t soon regret having.

​​You should always take bird droppings seriously and exercise caution when dealing with it. The parasites carried in a sparrows’ fecal matter can pose a huge life changing threat to your health.

Control Options Strategies

​Professional bird control is what you need when your sparrow problem gets serious and we have the experience to help you out. Between sparrow droppings and the health risks that the birds pose, there is plenty of reason to stop the problem before it gets any worse than it is and you may be saving thousands of dollars. The longer sparrows are in a location, they more they feel at home and they will not always leave willingly. It is easier to get rid of them as soon as you see them starting to make your home or business their spot. We can get to the birds in the hard to reach spots they like to inhabit and follow local rules to get the job done properly. It takes time and the proper methods to get rid of sparrows and keep them from coming right back. We know how to perform bird control techniques and can save you a lot of time and effort. Since it can be harmful to try to deal with sparrows and their droppings on your own, you should hire professional help to get things handled in a timely and safe fashion.

There are several bird control options for sparrow control, sparrow deterrent and sparrow exclusion pest bird problems.  ​

  • Installation of ¾” bird netting in affected areas for sparrow exclusion.

  • Note that any larger mesh spacing will allow the sparrows access.

  • ​Stainless Steel hardware metal mesh screening to screen off problem areas.

  • Building modification and alteration

  • Sounds Units (various options)

  • Visual Scare Devices (various options)

  • Taste Deterrents applied to targeted areas.

  • Thermal fogging of landscaping and roosting and nesting areas.

  • Electrified track systems may be used on façade sign letter and raceways behind the signage letters.

  • Mist netting for humane live capture and relocation.

  • Targeting/aggressive harvesting programs for the removal of sparrows with commercial buildings.

When determining a sparrow control plan, it is important to take several factors into consideration: ​

  • How long has the sparrow problem been going on for?

  • How long have the sparrows been in the store or areas?

  • Is anyone feeding the birds?

  • Are there any building openings or deficiencies that are allowing the birds to gain access to the interior?

  • How many sparrows and how many areas?

  • How dense is the landscaping?

  • ​How close is the landscaping to the problem areas?

  • Retention ponds or other water sources?

  • ​How much will it cost to resolve the sparrow problem?

  • Can only the affected areas where the sparrows are gaining access be treated?

  • How many sparrows are acceptable (threshold)?   

  • What type of damage are the sparrows causing to the structure?

  • Are the sparrows creating a health issue due to nesting or sparrow bird droppings?

  • Are there any liability issues due to the bird infestation or sparrow droppings?

​​A sparrow problem should not be taken lightly or left to take care of itself. The potential damage and health risks are too great to let sparrows run wild on your home, business or other type of structure and we can help stop the problem before it gets any bigger.

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