Can You Keep Field Mice as Pets? What You Need To Know

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Field mice are small, cute, and often considered pests. However, some people have wondered if they can keep them as pets. Unfortunately, the answer is not a straightforward yes or no, as it depends on various factors.

Firstly, it is essential to understand that field mice are not the same as domesticated mice, bred to be kept as pets. Instead, field mice are wild animals not tamed or domesticated. As such, they may exhibit wild and unpredictable behavior, making them challenging to handle and care for.

Furthermore, keeping wild animals as pets may be illegal in some areas. Therefore, it is crucial to check with local authorities to ensure that owning a field mouse as a pet is legal in your area. Even if it is legal, it is essential to consider the ethical implications of keeping a wild animal in captivity and whether it is in the animal’s best interest.



Types of Field Mice

Field mice are small rodents found in various parts of the world. There are several types of field mice, each with its unique features and characteristics. Some of the common types of field mice include:

  • Deer Mice: Deer mice are small, agile, and have large ears. They are commonly found in North America, and their fur is usually brown or grey.
  • Harvest Mice: Harvest mice are small, with long tails and large eyes. They are generally found in Europe, Asia, and Africa, and their fur is usually brown or reddish-brown.
  • Wood Mice: Wood mice are medium-sized, with large ears and long tails. They are commonly found in Europe and Asia; their fur is usually brown or grey.
  • Yellow-necked Mice: Yellow-necked mice are medium-sized, with distinctive yellow bands around their neck. They are commonly found in Europe, and their fur is usually brown or grey.

Each type of field mouse has its unique characteristics, and it is essential to understand these differences before deciding to keep them as pets. It is also important to note that field mice are wild animals and may not be suitable pets for everyone.


Housing and Diet


When keeping field mice as pets, providing them with a suitable living environment and a well-balanced diet is essential. Here are some tips on how to house and feed your pet field mouse:




Field mice are active creatures that require a lot of space to move around. Therefore, a cage or enclosure at least 12 inches by 18 inches in size is recommended. The enclosure should be made of wire mesh or plastic and have a solid floor to prevent escape. It should also have a secure lid to prevent predators from getting in and your pet from getting out.

Provide your pet with plenty of bedding material, such as shredded paper or wood shavings, to create a comfortable and safe place to sleep. In addition, make sure to clean the cage regularly to prevent the buildup of waste and bacteria.




A well-balanced diet is essential for the health and well-being of your pet field mouse. A good diet should combine commercial mouse food, fresh fruits and vegetables, and occasional treats.

Commercial mouse food can be found at most pet stores and should comprise the bulk of your pet’s diet. Look for high-quality food formulated explicitly for mice and contains various nutrients, vitamins, and minerals.

In addition to commercial food, provide your pet with fresh fruits and vegetables daily. Good options include apples, carrots, broccoli, and spinach. Avoid feeding your pet citrus fruits or anything high in sugar or salt.

Treats should be given sparingly and in small amounts. Good options include small pieces of cheese, cooked chicken, or mealworms.

Make sure to provide your pet with fresh water at all times. Use a water bottle or dish that is easy to clean and refill.

Providing your pet field mouse with a suitable living environment and a well-balanced diet can help them live happy and healthy lives.


Health and Hygiene


As with any pet, the health and hygiene of your field mouse are of utmost importance. In addition, keeping your house clean and healthy will ensure its well-being and prevent potential health risks to you and your family.

Maintaining a clean living space is one of the most important aspects of keeping your mouse healthy. This means regularly cleaning and disinfecting the cage, providing fresh bedding, and removing uneaten food or waste. A dirty living space can lead to the growth of harmful bacteria and parasites, which can cause illness in your mouse and potentially spread to humans.

In addition to a clean living space, providing your mouse with a healthy diet is essential. A diet consisting of high-quality mouse food, supplemented with fresh fruits and vegetables, can help ensure your mouse receives all the necessary nutrients for optimal health.

Regular veterinary check-ups are also recommended to ensure your mouse remains healthy. A veterinarian can guide proper nutrition and detect potential health issues early on.

Finally, it’s essential to practice good hygiene when handling your mouse. Always wash your hands before and after handling your mouse, and avoid contact with your face or mouth while handling your pet.


Legal Considerations


Before considering keeping a field mouse as a pet, it is essential to understand its legal implications. While field mice are not typically regulated as pets, you must check with local and state laws to ensure that keeping them as pets is legal.

Some states may require permits or have restrictions on keeping certain types of wildlife as pets. Additionally, it is essential to consider the potential risk of introducing a non-native species into your area. For example, field mice are native to many parts of the world, but teaching them in a new environment could have unintended consequences.

If you are considering purchasing a field mouse from a pet store, ensure the store is reputable and licensed. It is also essential to ensure that the mouse has been bred in captivity and not taken from the wild, as this can contribute to the depletion of wild populations.

Overall, it is essential to research and understand the legal implications and potential risks before deciding to keep a field mouse as a pet.




While field mice may seem like cute and cuddly pets, it is essential to consider the practicality and ethical implications of keeping them in captivity.

Field mice are wild animals and may not adapt well to life in a cage. They require a specific diet and environment to thrive, and providing these conditions in a domestic setting can be difficult. Additionally, field mice are carriers of diseases that can be transmitted to humans, making them potentially dangerous pets.

It is also essential to consider the impact of keeping wild animals as pets in their natural habitats. For example, capturing field mice from the wild can disrupt the ecosystem and potentially harm other animals that rely on them for food or shelter.

While it may be tempting to keep field mice as pets, it is not recommended. Instead, consider adopting a domesticated pet from a reputable breeder or animal shelter.

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