Flocks In The Parking Lot: Exploring Why Birds Congregate At Walmarts

It’s a common sight – flocks of birds swarming the parking lots of Walmart, Target, and other big-box stores. Some see it as a nuisance, others are fascinated by the phenomenon. But what draws different species ranging from pigeons to seagulls to form bustling bird communities in the unlikely habitat of retail parking lots?

This comprehensive article will examine the theories behind parking lot birds.

If you’re short on time – birds are opportunistic scavengers drawn to parking lots because of ample food sources, safe nesting spots, and few predators.

Abundant Food Sources For Scavengers

One of the main reasons why birds congregate at Walmarts is the availability of abundant food sources. These large retail stores attract a variety of scavenger birds due to the presence of leftover fast food and crumbs in the parking lot.

Leftover Fast Food and Crumbs

With the high volume of customers visiting Walmarts on a daily basis, it’s not uncommon for people to consume food while walking through the parking lot. This leads to the dropping of food scraps, such as french fries, burger buns, or even entire meals.

Birds, especially fast-food-loving species like seagulls and crows, are quick to seize this opportunity for an easy meal.

Furthermore, the presence of food courts and outdoor dining areas near Walmarts also contributes to the availability of leftover fast food. Customers who enjoy a quick bite before or after their shopping trip may unintentionally leave behind crumbs or unfinished meals, attracting birds looking for an easy snack.

Overflowing Trash Bins

Another reason why birds flock to Walmarts is the overflowing trash bins found in the vicinity. With the high volume of customers, the amount of waste generated is significant, and it can be a treasure trove for scavengers.

Birds such as pigeons and sparrows are known to scavenge through trash bins in search of discarded food items.

It’s important to note that while the presence of birds near trash bins may seem unsightly, it is a natural behavior for many species. These birds have adapted to urban environments and have learned to take advantage of available resources, including the food waste generated by human activity.

Garden Centers and Pet Supplies

Walmarts often have garden centers and pet supplies sections, which can also attract birds. Garden centers offer a variety of plants, seeds, and insects that birds find appealing. Birds may visit these areas to forage for insects or consume ripe berries from shrubs.

In addition, the pet supplies section of Walmarts can be a source of interest for certain bird species. The presence of bird feeders, birdhouses, and birdseed can attract birds, particularly those that are commonly kept as pets, such as parakeets or canaries.

It’s fascinating to observe how Walmarts inadvertently create a haven for birds, thanks to the abundance of food sources available. While it may seem unusual to see flocks of birds in parking lots, it is a testament to their adaptability and resourcefulness in finding sustenance in unexpected places.

Ideal Nesting Conditions

One of the reasons why birds congregate at Walmarts is because they provide ideal nesting conditions. These conditions include a combination of trees and shrubs for shelter, structures for rooftop and canopy nests, and even carts for ground nests.

Trees and Shrubs for Shelter

Walmarts are often surrounded by large parking lots, but they also have landscaping features such as trees and shrubs. These natural elements provide birds with shelter from predators and harsh weather conditions.

The dense foliage of trees and shrubs provides a safe haven for birds to build their nests and raise their young. Additionally, these green spaces attract insects and other small animals, which can serve as a food source for the birds.

Structures for Rooftop and Canopy Nests

Walmart buildings, particularly the large supercenters, have expansive rooftops and canopies that provide an enticing nesting opportunity for birds. These structures offer protection from predators and other threats, while also providing a vantage point for birds to observe their surroundings.

The flat surfaces of rooftops can be particularly appealing for species that prefer open nesting areas.

Carts for Ground Nests

Believe it or not, some bird species have adapted to nesting in shopping carts found in Walmart parking lots. These carts provide a secluded and protected space for ground-nesting birds. The metal frames and handles of the carts create a barrier from potential threats, allowing birds to lay their eggs and care for their young undisturbed.

According to the Audubon Society, birds have been observed nesting in shopping carts due to the lack of suitable natural habitat in urban environments. While this may seem like an unconventional choice, it demonstrates the adaptability of birds in finding alternate nesting sites.

Fewer Predators and Threats

Birds congregating in Walmart parking lots can be attributed to several factors, one of which is the presence of fewer predators and threats compared to other areas. In natural habitats, birds face a constant risk of predation from larger animals such as hawks, snakes, and even other birds.

However, parking lots tend to have a limited number of natural predators, making them a relatively safe haven for birds.

Limited Natural Predators

One of the main reasons birds gather in Walmart parking lots is the lack of natural predators in these areas. As urbanization continues to encroach upon natural habitats, many birds have adapted to urban environments where their natural predators are less prevalent.

Parking lots, with their open spaces and lack of dense vegetation, provide birds with a clear line of sight and the ability to spot potential threats from a distance.

Avoiding Riskier Urban Areas

While parking lots may not offer complete safety from predators, birds often choose them over riskier urban areas. For example, busy city streets present numerous dangers such as cars, bikes, and pedestrians, which can pose a greater threat to birds.

By congregating in parking lots, birds can avoid these riskier areas and reduce their chances of encountering harmful situations.

Protection in Numbers

Birds are known to flock together for added protection against predators. This behavior, known as “safety in numbers,” allows birds to have a better chance of detecting and evading potential threats. By gathering in Walmart parking lots, birds can benefit from the presence of other birds, increasing their collective vigilance and reducing the chances of individual predation.

Furthermore, the presence of numerous birds in a parking lot can deter potential predators altogether. Predators may be less likely to attack when faced with a large group of birds that can potentially defend themselves or alert others to the danger.

This collective defense mechanism provides an additional layer of protection for birds in Walmart parking lots.

It is important to note that while these factors may contribute to the congregation of birds in Walmart parking lots, it is always recommended to respect the natural behavior of wildlife and avoid disturbing or harming them.

Consequences of Parking Lot Habitation

While the sight of flocks of birds congregating in Walmart parking lots may seem harmless and even amusing, there are several consequences that come with their habitation in these areas. These consequences can range from property damage to health risks for both humans and birds.

Property Damage from Droppings

One of the most obvious consequences of birds congregating in Walmart parking lots is the property damage caused by their droppings. Birds have a high metabolic rate, which means they produce a significant amount of waste.

The acidic nature of bird droppings can corrode paint, damage car finishes, and even erode building materials over time. This can result in costly repairs and maintenance for both Walmart and its customers.

According to a study conducted by the Bird Strike Committee USA, bird droppings cause an estimated $400 million in damages to vehicles annually. This figure includes both direct costs, such as repairs and cleaning, as well as indirect costs, such as decreased resale value.

So, the presence of birds in parking lots can have a significant financial impact on both individuals and businesses.

Spread of Disease

Another consequence of birds congregating in Walmart parking lots is the potential spread of diseases. Birds can carry various pathogens, including bacteria, viruses, and parasites, which can be transmitted through their droppings, feathers, and saliva.

These pathogens can pose a risk to human health, especially if individuals come into direct contact with contaminated surfaces or inhale airborne particles.

For example, one common disease associated with bird droppings is histoplasmosis, a respiratory illness caused by the inhalation of fungal spores present in bird droppings. In severe cases, histoplasmosis can lead to pneumonia-like symptoms and can be particularly dangerous for individuals with weakened immune systems.

It is essential for Walmart to take measures to minimize the risk of disease transmission by implementing proper cleaning protocols and encouraging customers to practice good hygiene, such as washing their hands after coming into contact with potentially contaminated surfaces.

Nuisance for Shoppers

Besides property damage and health risks, the presence of birds in Walmart parking lots can also be a nuisance for shoppers. Birds can be noisy, especially during mating season or when defending their territory.

Their constant chirping and squawking can disrupt the peaceful shopping experience and even deter potential customers.

Additionally, birds are known to scavenge for food scraps in parking lots, which can lead to littering and attract other pests, such as rodents. This can create an unsightly and unhygienic environment for shoppers, potentially impacting their overall perception of Walmart and their willingness to return.

Management Solutions and Mitigation

Dealing with bird congregations in parking lots can be a challenge, but there are several management solutions and mitigation strategies that can help alleviate the issue. These strategies aim to discourage birds from gathering in large numbers and prevent potential problems such as droppings on vehicles, noise disturbances, and potential collisions.

Noise Deterrents

One effective approach to discourage birds from congregating in parking lots is the use of noise deterrents. These devices emit sounds specifically designed to deter birds, such as predator calls or distress signals.

The sudden and unexpected noises can startle the birds and discourage them from staying in the area. Additionally, some devices use ultrasonic frequencies that are unpleasant to birds but undetectable to human ears.

This humane method can be highly effective in dispersing bird flocks and preventing them from returning.

Architectural Exclusions

Another way to mitigate bird congregations is by implementing architectural exclusions. This involves modifying the physical structures in parking lots to make them less attractive or inaccessible to birds.

For example, installing spikes or wires on ledges and rooftops can prevent birds from perching or nesting. Netting can also be used to create barriers around certain areas, preventing birds from accessing them.

These modifications not only discourage birds from congregating but also help protect the property from damage that can be caused by bird droppings or nesting materials.

Removal of Food Sources

One of the main reasons birds congregate in parking lots is the availability of food sources. Walmarts, with their busy loading docks and frequent deliveries, can be particularly attractive to birds seeking easy access to food.

Implementing measures to remove or limit these food sources can help reduce bird congregations. This can include proper waste management, such as tightly sealed trash containers and regular cleaning to remove food scraps.

Additionally, educating employees and customers about the importance of not feeding birds can also play a significant role in discouraging bird flocks.

By combining these management solutions and mitigation strategies, Walmarts and other establishments can effectively address the issue of bird congregations in their parking lots. These approaches not only help maintain a clean and safe environment but also promote a positive shopping experience for customers.


While congregations of parking lot birds can be disruptive, understanding the environmental factors that draw them in can help manage the issue humanely. Implementing careful solutions allows birds and businesses to coexist in harmony.

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