Do Birds Eat Cutworms: Unveiling the Facts

Cutworms are a common pest found in gardens and agricultural fields, causing damage to a variety of plants. These caterpillars are the larval stage of moths from the Noctuidae family and can wreak havoc on crops if their population goes unchecked. As a result, the role of birds as natural predators of cutworms become a topic of interest for gardeners and farmers alike.

Birds play a crucial role in controlling cutworm populations, as they are known to consume these pests in significant numbers. Species such as bluebirds, robins, and horned larks are especially effective in keeping cutworm numbers in check. These birds actively hunt for cutworms and other insect pests around the borders of gardens and agricultural fields, helping to mitigate the damage caused by these unwanted insects.

Moreover, cutworms are not only preyed upon by birds but also face predation from other animals such as predatory ground beetles and hunting wasps. These natural enemies serve as an essential part of the ecosystem, helping to regulate pest populations in a sustainable manner. This knowledge can offer valuable insights for farmers and gardeners seeking to protect their plants from cutworm damage.

Do Birds Eat Cutworms

Predatory Birds Commonly Consuming Cutworms

Cutworms are known to be a problem for crops, but they also serve as a source of food for several bird species. In particular, birds that eat insects can prey on cutworms, contributing to natural pest control.

A study has shown that birds can reduce the damage caused by cutworms in corn fields. This can be attributed to the consumption of cutworms by birds, as their feeding activities keep the population of these pests in check.

Some of the predatory birds commonly known to consume cutworms include:

  • Sparrows
  • Blackbirds
  • Starlings

These birds are often found in agricultural areas, where cutworms are common. By feeding on these pests, they help maintain a balance in the ecosystem and potentially reduce the need for chemical control methods. Additionally, under wet conditions, cutworms surface, leading to an increased rate of predation by birds and other insects.

While birds do help control cutworm populations, it is essential to ensure that the methods used to combat cutworms do not negatively impact the birds. For example, the use of chemicals like chlorpyrifos should be closely monitored as they can potentially harm predatory bird species. Ensuring the safety of these predatory birds helps maintain the natural balance within the ecosystem.

In conclusion, birds play a vital role in controlling cutworm populations. By consuming these pests, they contribute to natural pest control and reduce the need for chemical interventions in agricultural environments. However, it is important to be mindful of the potential impact of such interventions on the birds themselves and strive for a balanced and sustainable ecosystem.

Do birds eat cutworms?

Cutworms’ Role in the Ecosystem

Impact on Agriculture

Cutworms can cause significant damage to agricultural crops. They feed on a variety of plants, and their effects can lead to reduced yields and economic losses for farmers. Research has shown that birds play a protective role in controlling pest insect populations in corn, including cutworms, by feeding on them ([source]).

Some factors that can influence the impact of cutworm populations in agricultural fields include:

  • Crop type and growth stage
  • The presence of natural enemies, such as birds and predatory insects
  • Weather conditions and environmental factors

Benefits to Natural Habitats

Despite their negative impacts on agriculture, cutworms also contribute to the health of natural ecosystems. They are a source of food for various predators, including birds, which help to maintain a balance within the ecosystem. For example, in India, avian predators can control cutworm populations by consuming them, preventing severe infestations, and supporting a diverse habitat ([source]).

Some benefits of cutworms in natural habitats include:

  • Serving as a food source for birds and other predators
  • Providing nutrient cycling through their consumption of plant materials

In summary, cutworms have both negative and positive impacts in the ecosystem. While they can cause significant damage to crops in agricultural fields, they also serve as a food source for bird populations and contribute to the overall health of natural habitats. Encouraging the presence of natural predators, like birds, can help control cutworm populations and minimize their harmful impact on agriculture while supporting biodiversity in the ecosystem.

Methods to Attract Birds for Cutworm Control

Birds are known to eat cutworms, which can be helpful in controlling their population and preventing damage to crops and plants. To attract birds for cutworm control, consider implementing the following planting strategies, providing shelter, and offering food.

Planting Strategies

To encourage birds to visit your garden or field for cutworm control, create an environment that is appealing to various bird species by incorporating these planting strategies:

  • Plant a diverse range of native plants, including trees, shrubs, and flowering plants, to attract a variety of birds.
  • Incorporate berry-producing bushes and shrubs, which serve as food sources for birds.
  • Create dense shrubbery to provide cover and nesting sites for birds.
  • Include tall grasses and groundcovers to offer birds additional shelter.

Providing Shelter

Birds require shelter to keep them safe from predators and weather elements. Several ways to provide shelter in your garden or field include:

  • Installing birdhouses or nesting boxes that cater to different bird species.
  • Providing natural shelters such as thickets, hedgerows, and tree hollows.
  • Creating brush piles from fallen branches and pruned twigs, as these can serve as hideouts for birds.

Food Sources

In addition to controlling cutworms, birds need various food sources to sustain their energy levels. To attract birds and encourage them to stay in your garden or field, consider providing these essentials:

  • Bird feeders with a variety of seeds, suet, and fruits to accommodate the dietary needs of different bird species.
  • Water sources such as birdbaths, shallow ponds, or fountains for birds to drink and bathe in.
  • Avoid the use of pesticides and chemicals in your garden or field, as these can harm beneficial insects that serve as natural food sources for birds.

Implementing these methods will help attract birds to your garden or field, making it more likely they will aid in controlling cutworm populations.


Alternative Cutworm Control Methods

Cutworms can cause significant damage to plants and crops. In this section, we will explore alternative methods for controlling these pests, including biological and chemical options.

Biological Controls

Utilizing natural enemies can be an effective way to keep cutworm populations in check. Some biological control methods to consider include:

  • Predators: Many bird species are attracted to cutworms and can help reduce their numbers. Encourage birds on your property by installing bird feeders, birdhouses, or birdbaths.
  • Parasitic wasps: These insects lay their eggs on or inside cutworms, and as the wasp larvae grow, they consume the cutworms. Introducing parasitic wasps to your garden can help to manage cutworm populations.
  • Nematodes: Beneficial nematodes are microscopic organisms that can attack and kill cutworms. Application of nematodes to infested areas can be an effective biological control measure.

Chemical Controls

When biological controls are not enough, chemical options may be necessary to manage cutworm infestations. Here are some chemical controls to consider:

  • Baits: Applying cutworm baits, such as those containing carbaryl, can help to control these pests by attracting and killing them.
  • Insecticides: Using insecticides like spinosad, acephate, or permethrin can be helpful in controlling cutworm populations. It’s important to follow label instructions when using any type of pesticide and to consider reduced risk insecticides when possible.
  • Cultural Practices: Adjusting cultivation methods can also help to prevent cutworm infestations. For example, tilling the soil during land preparation can kill cutworms and disrupt their life cycles.

In summary, there are numerous alternative methods to manage cutworm populations, including biological controls, chemical controls, and cultural practices. It’s essential to assess the specific needs of your garden or crops, and select the best approach for your situation.


Birds play a significant role in controlling the population of various insects, including cutworms. According to a study, two species of breeding birds commonly found in wheat fields have been observed consuming cutworms. This predation by birds helps to maintain a balance in the ecosystem and aids in pest control, as cutworms can cause considerable damage to plantations.

Some birds, such as Bobolinks, have been found to eat cutworms and other insects infrequently. However, it is important to note that their consumption patterns may vary depending on factors such as seasonal insect abundance and other food availability.

While birds do provide essential ecosystem services by preying on cutworms, it is crucial to consider the potential impact of human activity on these natural predators. For instance, the use of pesticides can harm not only the target insects but also the birds that consume them. Still, as demonstrated in the research, there are ways to mitigate these negative effects, such as using alternative pest control methods or selective application of pesticides.

To sum up, it can be safely said that birds are valuable as natural predators of cutworms, helping maintain balance in the ecosystem. However, it is essential to carefully consider our actions and their consequences on these birds and the environment as a whole.

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