Due to the risk to life, most vets won’t sterilize a parrot unless it has a severe health problem. Instead, vets attempt to prevent egg production and laying by controlling hormones to remove the triggers.
Females may be spayed due to reproductive issues like chronic egg laying, egg binding, or egg yolk peritonitis. Malignant tumors in reproductive organs may necessitate spaying or neutering.
A vet will assess a parrot’s health with blood tests, radiographs, ultrasound, CT scans, and exploratory surgery. If a problem is identified, they’ll surgically remove the ovaries, uterus, or testicles.
Why Sterilizing Parrots Dangerous
Sterilization requires invasive, open surgery, meaning general anesthesia would be necessary.
Sedating a parrot carries significant risk. Anesthesia strains the hearts of exotic birds, potentially reducing their cardiac and respiratory performance.
The location of avian reproductive organs means that surgery is dangerous. A parrot could bleed to death if the vein connected to the ovaries and testes is accidentally cut.
Neutering in Parrots
Male parrots can be sterilized through neutering, but the process differs from a mammal. Parrots don’t have a penis, and their testicles are located internally in the coelomic cavity within the abdomen.
Neutering a male parrot will involve a vasectomy or castration.
The former is a more straightforward procedure but will only be considered if required on medical grounds. Very few vets will sterilize a male parrot to adjust its breeding behavior.
Vasectomy vs. Castration
Vasectomizing a parrot involves cutting the ductus deferens (vas deferens,) a thick tube that connects the testicles to the cloaca. This is the vent that a parrot uses to release feces and urine.
The ductus deferens transport sperm from the testicles to the cloaca.
When a male parrot wants to breed with a female, he mounts from behind, rubbing his cloaca against that of the female. This is called the “cloacal kiss.”
If the parrot has undergone a vasectomy, a section of the ductus deferens will be surgically removed.
This prevents sperm from reaching the female’s cloaca during mating, rendering the male infertile and preventing the female from becoming gravid.
A parrot’s vasectomy can take up to 6 months to be effective, but the outcome will be infertility. Castration will be required if a parrot’s health is at imminent risk due to testicular cancer.
Castration involves open surgery and removing the testicles from the coelomic cavity. If any tissue remains, the testicles can regenerate and become fully functional.
Spaying in Parrots
According to the Veterinary Clinics of North America: Exotic Animal Practice, only the left side of a female parrot’s reproductive system is active. The left of the coelomic cavity hosts the ovaries and oviduct.
Fertile females develop eggs in the ovary, releasing them to the oviduct during ovulation.
While in the oviduct, a shell begins forming. Upon transportation to the uterus, calcite – a form of calcium carbonate – hardens this shell.
The two forms of spaying (ovariohysterectomies and ovariectomies) are dangerous and complex.
Ovariohysterectomy vs. Ovariectomy
If a parrot requires spaying, most vets will conduct an ovariectomy (OVE.) This involves removing both ovaries from the coelomic cavity. Without ovaries, the parrot can’t become gravid.
If a parrot faces a medical emergency like ovarian cancer, an ovariohysterectomy (OVH) may be required. This involves removing the uterus alongside both ovaries.
Stopping A Parrot from Laying Eggs
If a parrot is male, keeping it alone will prevent reproduction. However, a lone male will still experience elevated hormones during the breeding season, leading to behavioral volatility.
Unlike Eclectus parrots, many birds are monomorphic and display no visual differences between genders. Arrange a DNA test to confirm the parrot has been accurately sexed.
Captive female parrots can become gravid without a male companion. Favorable environmental conditions (light, warmth, and food) cause their bodies to produce eggs.
Cover the cage earlier to reduce natural (and artificial) light so the bird believes the days are shorter. You should also moderate temperatures so the room is less warm and reduces the amount of food.
Avoid petting the vent, back, or wings because these are reserved for mates. Also, don’t provide a female parrot with anything that could be used for nesting material.
Situations Where Vets Spay Parrots
A vet will assess the parrot and confirm if sterilization surgery is required.
Chronic Egg Laying
Female parrots remain fertile for their entire lives.
Gestation and egg-laying are physically and emotionally taxing for parrots. Consequently, repeating the process will take a heavy toll on the body and organs.
If a parrot consistently lays unfertilized eggs, she’s straining her body unnecessarily. A vet may recommend spaying to prevent chronic egg-laying activity.
Oviductal Prolapse
When a parrot lays an egg, the cloaca temporarily turns itself inside out.
This cleans the egg, ensuring that oxygen can reach the shell. From here, the embryo within the egg can draw air from tiny spores found on the egg’s exterior.
The cloaca will return to the body. If the laying bird is obese, stressed, lays the egg too soon, or attempts to pass an egg too large, oviductal prolapse may occur.
Oviductal prolapse means the cloaca will remain outside the body and must be manually returned. Sterilization may be the only safe option in instances of regular oviductal prolapse.
Egg Yolk Peritonitis (EYP)
EYP arises when a yolk from an egg enters a parrot’s ovary and becomes trapped within the coelomic cavity. Essentially, the parrot is laying an egg within its own body.
When this concern arises, the peritoneum – a membrane that transports blood and other essential fluids throughout the body – becomes inflamed, which is very painful.
Egg yolk peritonitis can be septic, which means the egg yolk trapped within the parrot’s coelomic cavity is contaminated with bacteria. Untreated septic EYP can cause lethal organ damage and toxicity.
All parrots can get EYP once through misfortune or short-term stress when laying eggs.
Pyometra
Pyometra is a bacterial infection of the reproductive organs that causes pus to build up within the ovaries. Older females who have laid multiple clutches are at a higher risk of pyometra.
If a parrot develops pyometra, a vet will perform an ovariohysterectomy to remove the infected organs. Left untreated, pyometra will spread to the kidneys and cause premature death.
Polycystic Ovary Syndrome (PCOS)
PCOS is a disease that impacts a female’s reproductive system.
The most common cause of PCOS in parrots is polycystic ovaries – enlargement of the ovaries due to the presence of sacs filled with fluid (called follicles) surrounding any gestating eggs.
According to the Journal of Immunology Research, PCOS is frequently linked to ovarian cancer (OVCA) in parrots and can cause infertility.
PCOS can be managed with diet and lifestyle changes, but a vet may recommend an ovariectomy.
Uterine Tumors
As female parrots grow older and lay multiple clutches of eggs, they’re at greater risk of ovarian neoplasia. This will result in the growth of tumors within the reproductive system.
Contagious viral infections can lead to uterine tumors. The most common is Gallid alphaherpesvirus 1, often known as avian herpesvirus.
Also, Marek’s disease, Pacheco’s disease, leukosis, and reticuloendotheliosis can cause uterine tumors.
Uterine tumors are identified through x-rays and bloodwork, with radiation therapy or chemotherapy required if the concern is captured early enough for treatment.
In addition, a parrot may need her reproductive organs surgically removed.
Mammary or Testicular Cancer
Another avian oncology concern is mammary cancer in females or testicular cancer in males. These may be treated with radiation or involve the surgical removal of the organs.
Parrots can be fixed, but the procedure carries extensive risk. Non-invasive approaches to preventing egg production and hormonal behavior should always be explored first.
