10 Common Deformed Budgie Beak Causes and Their Solutions

Last updated on April 25th, 2024 at 09:31 pm

Written by Isra P

A deformed budgie beak is a serious problem. Unfortunately, some people believe that when beak deformities show up, they should be overlooked as long as they don’t hinder the bird’s ability to eat. But that’s not necessarily true. While not all deformities are life-threatening, several require special attention as they might indicate an underlying illness.

The causes of a deformed budgie beak are many and may include congenital defects, trauma, tumors, infections, nutritional deficiencies, toxin exposure, incorrect diet, improper feeding, and incubation problems.

According to a study mentioned in the Turkish Veterinary Journal, among all possible issues, infections by mites and trauma were the most common reasons for beak deformities in budgerigars brought to veterinary clinics.

Still, it isn’t uncommon for budgies to experience a beak deformity due to several conditions at once. Under such circumstances, it can be a challenge to determine the problem and the appropriate treatment.

Keratin is the substance that comprises most of a budgie’s beak. That’s the same material found in your fingernails, hair, and part of your skin, which is something we have in common with our beloved pets.

Now, the beak is part of the rostrum, commonly known as the bill, which is the actual name of a bird’s mouth. The upper part of the bill consists of the maxillary rostrum and the maxillary beak. The lower part is made of the mandibular rostrum and the mandibular beak.

It’s important to know that in addition to keratin, the mouth area also has a lot of blood vessels and tissues that connect the beak to the bones found in a budgie’s head.

Usually, a budgie’s beak keeps growing during the bird’s entire life. Still, it shouldn’t overgrow due to chewing, grooming, and climbing. When that is not the case, it’s almost certain there’s a health issue.

What Should a Budgie's Beak Look Like?

parakeet's beak

Before we head into the causes of beak deformities, we must understand what makes a healthy budgie beak. Position, texture, length, color, and consistency are a few details that indicate the well-being of a budgie’s beak. Anything out of place may be a sign of a potential deformity.

⦁ The upper part of a budgie’s beak should be perfectly aligned with the lower part.

⦁ It should look both well-proportioned and smooth.

⦁ The beak mustn’t be excessively long.

⦁ There shouldn’t be any discolorations.

⦁ The beak’s top and bottom parts mustn’t have cracks or be dry.

What Does an Unhealthy Budgie Beak Look Like?

deformed beak

Any significant abnormality found on a budgie’s beak is considered a deformity. For example, cracks, unusual colors, misalignment, peeling, and a top or bottom part of the beak that is too long are all part of typical budgie beak problems.

How do I Know If my Budgie's Beak is Overgrown?

You can easily tell if your budgie’s beak is overgrown by comparing it to the one of a healthy budgie. Just search around, and you will find a sufficient number of examples of how a beak should look.

As a matter of fact, I’m willing to bet that even if you have never seen a deformed budgie beak before, you will know one by simply looking at it. The shape, color, texture, and length of a misshapen beak are something you can’t miss.

Type of Beak Deformity

There are a lot of things that can go wrong in the development of a beak. Still, it could be said that most deformities fall under one of several categories: overgrowth or fracture of the upper or lower part of the beak, scissor beak, or prognathism (study).

Maxillary Beak Overgrowth

The most common type of beak deformity in budgies is an overgrowth of the maxillary or upper part of the beak. It is characterized by an unusually long top beak area, which contributes to an uneven bite.

Mandibular Beak Overgrowth

When the bottom part of the beak becomes too elongated, it’s called mandibular beak overgrowth. It is uncommon to see this problem, but it may happen from time to time under certain conditions.

Maxillary Beak Fracture

Beaks that are too long is one issue among many that may arise in budgies. Fractures are also reasonably common, especially in birds that are allowed to fly freely. In this case, the upper part of the beak gets cracked by a collision with a hard object or after being attacked by another bird.

Mandibular Beak Fracture

Once more, fractures affecting the lower part of the beak are a typical cause of beak deformities. Although they occur less often than in the upper beak, they can still cause discomfort.

Scissor Beak

The deformity known as scissor beak consists of a lateral deviation of the upper and lower part of the beak. Looking at a budgie from the front, you may see that the top and bottom parts are completely misaligned, making it difficult for it to eat or drink properly.

It is believed to be caused by improper feeding techniques, artificial incubation, genetic problems, nutritional deficiencies, and some infections (resource).


Parrot beak, also known as prognathism, is a condition that results when the tip of the upper part of the beak rests directly on or inside the lower part of it. This problem is not often seen in budgies but may arise if they have been exposed to improper incubation.

It may also appear in birds fed incorrectly or have experienced hereditary abnormalities.


A beak discoloration may be nothing or something. You see, during the molting process, some sections of the beak might change colors, which is perfectly natural. That aside, a significant change in a beak’s color could signify trauma or a serious infection.

In the following video, you will see the difference between a healthy and a deformed budgie beak:

What Causes Beak Deformities and how do you fix a Budgie's Beak?

There are an almost endless number of conditions that can deform the beak of a budgie. Some of them are mild, but others can threaten your bird’s life if you don’t act promptly. The following list includes a few common issues affecting a budgie’s beak. Always consult with an avian vet before attempting any kind of treatment.

1. Improper Hand feeding and Incubation

When baby budgies are not fed properly, they can develop beak deformities. This problem tends to occur when the person responsible for feeding them applies excessive pressure against their beak, leading to malformations (reference).

But that’s not the only time when it can happen. For example, too much force used when cleaning the beak of a small budgie may also result in a crooked beak.

Usual Beak Deformity: scissor beak, prognathism

Possible Treatment: In the case of younger budgies, scissor beak is usually treated by exerting pressure on the upper and lower parts of the beak with the fingers throughout the day until it gets realigned.

The veterinarian may also trim and reshape the upper and lower parts of the beak until both grow normally. Surgery and acrylic prosthetics are often used to fix the problem in older budgies.

Prognathism is treated similarly. By using moderate pressure two or three times a day, a beak may be corrected without much difficulty. Acrylic appliances are also an alternative to solve the condition.

2. Toxins

Harmful compounds can also create deformities in a beak. Radiation, for example, may alter the genetic makeup causing a beak to become larger or smaller than it should. Some chemicals can also trigger the appearance of tumors resulting in a possible beak loss.

Usual Beak Deformity: maxillary beak overgrowth, mandibular beak overgrowth, scissor beak, prognathism, and discoloration.

Possible Treatment: There is no known treatment for a deformity resulting from chemicals or radiation. Still, constant beak trimming, a balanced diet, and sometimes surgery are steps that can always improve a bird’s quality of life.

3. Nutritional Deficiency

A lack of appropriate nutrients in a budgie’s diet is more common than you think. Just like people, missing one or two essential vitamins or minerals is enough to trigger a deformity. For example, a deficiency in methionine can cause feathers to look dull and beaks to become soft and weak.

Additionally, consuming a low amount of vitamin D can make a beak frail. Not enough Folic acid, Biotin, Riboflavin, or Niacin may trigger bone and beak deformities.

Let’s remember calcium. The mineral is mandatory to build a strong beak and bones. Without it, as you may imagine, your pet’s limbs might get easily misshaped.

Usual Beak Deformity: maxillary beak overgrowth, mandibular beak overgrowth, scissor beak, prognathism, and discoloration

Possible Treatment: Once again, trimming is a must. After the beak has been properly reshaped, proper nutrition has to follow. Fortunately, nutritional imbalances are easily fixed by providing a balanced diet of pellets with seeds combined with fruits and vegetables.

Consider supplementing budgies with a multivitamin complex. Otherwise, malformations in the skeleton, limbs, and beak are likely to occur.

Birds should also be placed near windows where they can get vitamin D from sunlight during the day. If that’s not possible, it should be added as well to promote proper bone and beak development.

4. Psittacine Beak and Feather Disease (PBFD)

If there’s a condition that is bad news for anyone’s budgie, it’s PBFD. This disease caused by a circovirus can demolish a bird’s immune system while destroying the beak and feather cells.

Often, the immune system is strong enough to repel the infection, but that’s not always the case. It can be transmitted by direct contact or by being exposed to an infected bird’s droppings or feather dust. 

Normally, a bird may seem perfectly fine until it becomes stressed. It is then that the signs of the condition become evident. Typical symptoms associated with the ailment are loss of appetite, diarrhea, depression, regurgitation, and beak and feather abnormalities.

Afflicted birds may also present curly, clubbed, and stubble-like feathers. Furthermore, the type of beak deformation caused most often tends to be an overgrown upper beak that breaks easily.

Usual Beak Deformity: maxillary beak overgrowth, mandibular beak overgrowth, and discoloration.

Possible Treatment: There isn’t a vaccine or a cure for PBFD. However, budgies may recover from the illness by eating a balanced diet of high-quality pellets with fruits and vegetables. Moreover, by being supplemented with vitamins and probiotics, they have a good probability of living happily for many years.

5. Mites

Knemicodoptes mites are terrifying. These tiny parasites can sneak into a bird’s body through any unfeathered spot. They love feeding on keratin, which is the protein used to build the beak and part of the skin of a bird.

Mites can be painful and may cause the beak to fall off, resulting in the budgie’s death. When they are present, you may see skin irritation, inability to stand on a perch, excessive preening, thick crusts growing on the cere, eyes, and legs, limping, and messy feathers.

They are transmitted by direct contact with infected birds or through contaminated items such as toys, perches, stands, or cages. Genetic predisposition is also a cause for the appearance of these troublesome parasites.

Usual Beak Deformity: maxillary beak overgrowth, mandibular beak overgrowth

Possible Treatment: Apply an anti-parasitic liquid, preferably containing ivermectin or moxidectin, to get rid of knemicodoptes. It may be necessary to apply orally and topically over several weeks to finish off the mites completely. Also, it’s always essential to clean the budgie’s cage thoroughly whenever dealing with a viral, bacterial, fungal, or parasitic infection to prevent a relapse.

6. Liver Disease

Even budgies can get liver disease, known as hepatic lipidosis or fatty liver. This condition can make a beak too soft, causing it to bend easily, not wear properly, and overgrow too fast.

But that’s not all. Even claws may grow much faster than usual, which is often a sign something is not right. Other symptoms related to the condition are difficulty breathing, diarrhea with plenty of yellow and green, itchy skin, and even seizures in later stages.

So what can cause fatty liver in budgies? A seed diet. When birds only eat seeds, they may accumulate more fat than the liver can process, resulting in many health problems.

Usual Beak Deformity: maxillary beak overgrowth, mandibular beak overgrowth, scissor beak, and discoloration.

Possible Treatment: A crucial step towards fixing a beak malformation induced by fatty liver is lowering the concentration of fats and toxins in the organ with a clean diet.

The food given to the budgie should contain fewer seeds and more organic pellets, fruits, and vegetables. Dark leafy greens, potatoes, and corn support liver detoxification, which is a great help to improve your winged companion’s health.

Furthermore, birds affected by the condition will likely need adequate supplementation such as vitamin C, magnesium, fiber, and B vitamins. The amino acids methionine and lysine are required to boost hepatic liver metabolism as well.

7. Chronic Sinusitis

An infection that pet owners commonly overlook is chronic sinusitis. The illness caused by certain types of bacteria (Pseudomonas and Mycoplasma) is associated with severe damage to the cere and upper part of the beak (source).

Budgies affected by it may also show nasal congestion, sneezing, severe mucus secretion, swelling around the eyes, weight loss, and a lack of appetite. It’s believed that a vitamin A deficiency is also connected to birds being more prone to the condition.

This detail may not be surprising as a seed-exclusive diet has been mentioned to contribute to the problem due to lacking essential nutrients such as vitamin A, iodine, and calcium. Although, at first glance, sinusitis can be confused with other illnesses, veterinarians often use biopsies or radiography to be completely sure.

Usual Beak Deformity: maxillary beak overgrowth.

Possible Treatment: Antibiotics such as enrofloxacin are typically used to treat the infection and improve the chances of survival. Vitamin A injections are also a great help, along with a most-needed diet change. Once more, providing a balanced diet of pellets and dark green leafy vegetables without forgetting oranges is a vital step towards preventing the condition from being an issue again.

8. Tumoral Formation

Microorganisms are not the only threat to a budgie’s beak. Neoplasms or tumors may appear, affecting its color, size, or texture. They usually show up as small lesions that gradually spread until they cause major swelling and deterioration to all nearby tissues. The type of tumors responsible for a beak’s deformity is often fibrosarcoma, melanoma, or carcinoma.

Usual Beak Deformity: discoloration.

Possible Treatment: Surgery is usually the most common approach to remove neoplasms (tumors) from a budgie’s beak tissue.

9. Trauma

Physical trauma is one of the top causes of beak deformities among budgies. Any strong impact on the upper (maxilla) or lower (mandible) part of the beak may lead to structural damage that can be irreversible if left untreated.

On most domestic budgies, trauma results from hitting a wall, window, ceiling, mirror, or even the cage as they fly. They may also get hurt by an attack from another bird, such as a parrot. So you must be careful when letting them out of the cage if you have other pets.

Usual Beak Deformity: maxillary beak fracture and mandibular beak fracture.

Possible Treatment: A beak fracture is considered an emergency, so an immediate trip to the vet is essential. The first step to help a budgie with a fractured beak is to stop the bleeding as soon as possible. It is also vital to reduce the pain and disinfect the wound to avoid an infection.

In some cases, a veterinarian may use acrylic adhesives to stabilize the fracture if needed. Minor wounds typically heal pretty fast as long as proper diet and support are given to the budgie. However, large fractures often require surgery and the use of prosthetics, at least for a short time.

10. Lack of use

Normally, birds keep their beaks sharp by consuming hard foods, grooming, rubbing their beaks, and chewing on toys, perches, or any rough surface they can find. It’s up to you to provide them with the necessary diet and toys, so they can maintain their beaks healthy.

Otherwise, their beaks might get elongated or deformed without anything to keep their constant growth in check.

Usual Beak Deformity: maxillary beak overgrowth and mandibular beak overgrowth.

Possible Treatment: Make sure your budgies have something to chew on daily. Provide cuttlebones that maintain their beaks trimmed and supply them with calcium, iodine, and other essential minerals.

cuttlebone for birds

Equip their cages with wooden perches, jingle bells, and toys to keep your pets busy while they have fun and get their beaks in top shape.

How do you fix an Elongated Budgie Beak?

Aside from taking care of the underlying cause, the standard procedure to fix a beak is trimming the overgrown part. Under normal circumstances, its tip doesn’t have any nerves or blood vessels, so it is perfectly safe to trim it without causing any damage to the bird.

Now, that can be tricky because when beaks are overgrown, blood vessels may be closer to the tip than they normally do, so there’s a significant risk of causing pain and bleeding if you try to do it yourself (article).

Veterinarians can pinpoint the exact area where they should trim without endangering your budgie. They usually use a rotary tool with a grinding stone to reshape beaks. Then, with the help of an assistant, vets are able to grind down the beak allowing the bird to feed and move around properly.

For a small budgie beak, vets have the alternative of using a nail file or emery board to reduce beak cracking that may occur by using larger tools.

Many things can cause a deformed budgie beak. It could be genetics, malnutrition, pathogens, accidents, or even improper care. Thankfully, you now know what a malformed beak looks like and the steps you can take to prevent and solve the problem. Don’t wait until is too late. Pay attention to your budgie’s beak, and visit an avian vet at the first sign of trouble.

He is the leading creator of featheredbuddies.com, a website dedicated to helping bird owners. For many years, Isra P has cared for budgies and other birds to ensure their happiness and well-being. His passion and enthusiasm for them have led him to a quest to find out why birds act the way they do and how to enrich their lives.