Bare-Eyed Cockatoo

Breeding Bare-Eyed Cockatoos is a commitment that extends far beyond placing a male and female together in a cage. Responsible aviculture requires a thorough assessment of the physical health, sexual maturity, behavioral temperament, and genetic background of both prospective parents before any breeding attempt is initiated. Bare-Eyed Cockatoos typically reach sexual maturity between three and five years of age, though behavioral signs of hormonal activity may appear earlier. Physiological readiness and behavioral readiness do not always coincide, and breeding birds that are physically mature but psychologically unprepared can result in egg abandonment, chick neglect, or aggression toward mates and offspring.

Both prospective breeding birds should undergo comprehensive veterinary screening before pairing. This examination should include a complete physical assessment, blood work with a full biochemistry panel and complete blood count, screening for Psittacine Beak and Feather Disease, Polyomavirus, Chlamydia psittaci, and avian bornavirus. These diseases can be transmitted vertically from parent to chick or horizontally between paired birds, and introducing an infected bird into a breeding program jeopardizes the health of the entire collection. Fecal analysis for parasites and crop cultures for bacterial and yeast overgrowth complete the screening protocol.

Genetic considerations are important for any breeding program. If the parentage of both birds is known, confirm that they are unrelated to avoid inbreeding depression, which can manifest as reduced fertility, increased susceptibility to disease, and developmental abnormalities in offspring. DNA sexing should be performed if visual sex determination is uncertain. While some experienced breeders can sex Bare-Eyed Cockatoos by subtle differences in head size and beak dimensions, DNA testing from a blood or feather sample provides definitive confirmation.

The breeder must also honestly assess their own readiness. Breeding cockatoos requires dedicated space for breeding pairs and growing chicks, a reliable supply of high-quality hand-feeding formula and equipment, the time commitment for round-the-clock feeding schedules if hand-raising, a relationship with an avian veterinarian available for emergencies, and a plan for responsibly placing every chick produced. The Bare-Eyed Cockatoo is a species with a multi-decade lifespan and significant behavioral complexity. Producing chicks without a commitment to finding and vetting suitable permanent homes is irresponsible and contributes to the population of displaced and rehomed cockatoos in rescue organizations.

Pair bonding in Bare-Eyed Cockatoos is a process that unfolds over weeks to months and involves a sophisticated behavioral repertoire that signals mutual acceptance, trust, and reproductive intent. Cockatoos are monogamous in the wild, forming long-term pair bonds that may persist for life. In captivity, successful pair bonding depends on the compatibility of individual temperaments, and not every male-female combination will result in a functional breeding pair. Forcing incompatible birds to cohabitate can lead to severe aggression, injury, and psychological trauma, particularly for the smaller or more submissive individual.

Introduce prospective pairs gradually. Begin with the birds in adjacent cages where they can see and hear each other without physical contact. Observe their responses carefully over a period of at least two to four weeks. Positive indicators include calm body language in each other's presence, mutual preening gestures directed through the cage bars, synchronized movement and vocalization, and a relaxed crest position. Negative indicators include persistent aggressive displays, prolonged screaming in the other bird's presence, fear responses such as cowering or retreat, and attempts to bite through the cage bars.

If the initial introduction period goes well, supervised physical introductions can begin in a neutral space that neither bird has established as its territory. The neutral space reduces territorial aggression, particularly from the male, who may view his cage as a resource worth defending. Place both birds on a large play stand or in a flight enclosure and observe closely. Mutual preening, where one bird solicits head scratches from the other by lowering its head, is the strongest behavioral indicator of pair compatibility. Shared feeding behavior, where birds eat side by side without aggression, and coordinated perching are also positive signs.

Courtship displays in Bare-Eyed Cockatoos involve a range of ritualized behaviors. The male typically initiates courtship with pronounced crest raising, wing spreading, strutting, and rhythmic head bobbing. He may vocalize with distinctive calls that differ from his normal repertoire. The female signals receptivity through a quieter version of the crest display, soft vocalizations, and solicitation postures. Copulation is preceded by mutual preening sessions that become increasingly focused on the head and neck region. The entire courtship process serves not only reproductive purposes but also reinforces the pair bond that will sustain cooperative incubation and chick rearing.

Be prepared for pair bonding to fail. Not all introductions lead to compatible pairs, and some birds may require multiple introduction attempts with different partners before finding a suitable mate. A bird that has been kept as a solo companion for many years may have difficulty adapting to the presence of a conspecific, particularly if it has developed a strong human bond that fulfills its social needs. In these cases, the bird's welfare as a companion may be better served by continuing its solo life rather than forcing a breeding scenario that causes stress to all parties involved.

Providing appropriate nesting facilities is essential for stimulating and supporting the breeding behavior of Bare-Eyed Cockatoos. In the wild, these birds nest in the hollows of large trees, often eucalyptus species, selecting cavities that offer protection from weather and predators while providing adequate internal space for incubation and chick rearing. Captive nest boxes must replicate the key features of these natural cavities to trigger nesting behavior and provide a safe environment for eggs and chicks.

The recommended nest box for Bare-Eyed Cockatoos is a vertical or slightly angled box constructed from thick timber, typically three-quarter-inch to one-inch hardwood or plywood. Exterior dimensions of approximately 12 inches wide by 12 inches deep by 24 to 30 inches tall provide adequate internal space. The entrance hole should be roughly 4 inches in diameter and positioned near the top of the box. An internal ladder or hardware cloth strip running from the entrance to the floor allows the adult birds to descend and ascend without landing on eggs or chicks. Some breeders include a concave depression in the floor of the box to prevent eggs from rolling.

Nesting substrate is a point of practical importance. Line the bottom of the nest box with a three- to four-inch layer of untreated wood shavings, preferably pine or aspen. Avoid cedar, which releases aromatic oils that can irritate the respiratory systems of adult birds and developing embryos. Bare-Eyed Cockatoos, like most cockatoo species, will spend considerable time modifying the nest box interior to their liking, chewing the entrance hole to a preferred diameter, shredding and rearranging the substrate, and sometimes adding material from outside the box. This modification behavior is normal and serves as an indicator of breeding readiness.

Nest box placement affects both breeding success and breeder access for monitoring. Mount the box on the outside of the flight or cage at a height that the birds perceive as secure, typically at the upper portion of the enclosure. An external access door or hinged panel on the back or side of the box allows the breeder to inspect eggs and chicks without reaching through the cage and past potentially defensive parents. Positioning the box so that natural or artificial light does not shine directly into the entrance reduces disturbance and mimics the dim interior of a natural tree hollow.

The breeding environment extends beyond the nest box itself. The pair should be housed in a spacious flight or cage that allows them to exercise, forage, and engage in normal non-nesting behaviors. A minimum enclosure size of six feet long by three feet wide by four feet tall is recommended, though larger is always preferable. Privacy from other birds and from excessive human foot traffic helps maintain the pair's sense of security. If multiple pairs are being bred in the same facility, visual barriers between enclosures reduce inter-pair stress and territorial disputes.

The egg-laying process in Bare-Eyed Cockatoos follows a predictable sequence that begins with observable behavioral changes in the hen and culminates in a clutch of two to four eggs laid at intervals of approximately 48 hours. Understanding this timeline and knowing what to expect at each stage allows the breeder to monitor the process effectively without unnecessary intervention, while remaining prepared to act if complications arise.

In the days leading up to the first egg, the hen spends increasing amounts of time inside the nest box and her droppings change noticeably, becoming larger, more liquid, and less frequent as the reproductive tract diverts metabolic resources toward egg formation. She may reduce her food intake slightly and become more protective of the nest box area, rebuffing approaches from the breeder and sometimes even from the male. The cloaca may appear slightly swollen. These changes are normal and expected. The male typically remains attentive, feeding the hen and standing guard near the nest box entrance.

Eggs are laid one at a time with approximately two-day intervals between each. A typical clutch consists of two to three eggs, though clutches of four are not uncommon. The eggs are white, oval, and measure approximately 37 by 27 millimeters. Incubation may begin with the first egg or may be delayed until the second or third egg is laid, a behavioral variation that affects whether the chicks hatch synchronously or asynchronously. Asynchronous hatching, where incubation begins with the first egg, produces chicks of varying ages and sizes within the clutch, with the oldest chick having a significant developmental advantage over its younger siblings.

Both parents share incubation duties, though the distribution of labor varies between pairs. Typically, the hen assumes the primary incubation role during the night, while the male takes over for portions of the day to allow the hen to eat, drink, and eliminate. The total incubation period for Bare-Eyed Cockatoo eggs is approximately 24 to 26 days from the onset of consistent incubation. During this period, the parents periodically turn the eggs to ensure even heat distribution and prevent the developing embryo from adhering to the shell membrane.

Egg candling allows the breeder to assess fertility and embryonic development without removing the egg from the nest for extended periods. Using a bright, focused light source held against the egg in a darkened room, a fertile egg will show a network of blood vessels and a developing embryo shadow by approximately seven to ten days of incubation. An infertile egg appears clear or shows a uniform yolk shadow without vascular development. A dead embryo appears as a dark, motionless mass without visible blood vessel growth. Candling should be performed quickly and gently, minimizing the time the egg is exposed to temperature change. If the parents are highly defensive, candling may need to be postponed or conducted only when the birds voluntarily leave the nest.

One of the most consequential decisions in Bare-Eyed Cockatoo breeding is whether to allow the parents to rear the chicks, to hand-rear from hatching, or to employ a hybrid approach where the parents raise the chicks for a period before they are pulled for hand-feeding. Each approach produces different outcomes in terms of chick health, socialization, behavioral development, and the bird's long-term suitability as a companion or breeding animal, and the breeder's choice should be guided by the intended future of each chick.

Parent-rearing produces chicks that benefit from the complete behavioral education that only conspecifics can provide. Parent-raised cockatoos learn species-appropriate body language, vocalization, feeding techniques, and social skills from their mother and father. These birds tend to be more socially confident around other birds and are better candidates for future breeding programs. The disadvantage for the companion bird market is that parent-raised chicks may be less comfortable with human handling unless supplemental socialization is provided during the rearing period. Parent-rearing also requires breeding pairs that are experienced, attentive, and non-aggressive toward their offspring, qualities that are not universal.

Hand-rearing from day one or shortly after hatching produces chicks that are thoroughly acclimated to human interaction and typically transition smoothly into companion bird roles. These chicks bond strongly with their human caregivers and are generally easier to tame and train than parent-raised counterparts. However, hand-rearing carries risks including aspiration during feeding, crop infections from imperfect hygiene, metabolic bone disease from formula deficiencies, and behavioral problems stemming from the chick's failure to learn appropriate avian social behaviors. Hand-raised cockatoos may also develop an excessive dependence on human attention that predisposes them to separation anxiety and screaming.

The co-parenting or hybrid approach attempts to capture the advantages of both methods. In this model, the parents raise the chicks for the first two to four weeks, providing the immunological benefits of parental feeding and the behavioral benefits of avian socialization during the most sensitive developmental window. The chicks are then pulled from the nest and transitioned to hand-feeding, continuing their socialization with humans during the period when they are most receptive to forming cross-species bonds. This approach requires careful timing and monitoring, as the transition from parental feeding to hand-feeding must be managed smoothly to avoid crop problems and weight loss.

Regardless of the rearing method chosen, the breeder bears responsibility for the health monitoring of every chick from hatching until placement. Daily weights, feeding records, developmental milestone tracking, and veterinary consultations for any abnormalities are non-negotiable aspects of responsible chick rearing. Each chick should receive a veterinary health screening before being placed in its permanent home, including disease testing appropriate for the species and the buyer's existing flock situation.

Breeding places significant physiological demands on both male and female Bare-Eyed Cockatoos, and the breeder must be vigilant for health complications that can affect either parent or the developing chicks. While most breeding cycles proceed without incident in healthy, well-managed pairs, complications do occur and their resolution often requires prompt veterinary intervention. Familiarity with the most common breeding-related health issues equips the breeder to recognize problems early and respond appropriately.

Egg binding is the most acute reproductive emergency in breeding hens. This condition occurs when a fully formed egg cannot be expelled from the reproductive tract and becomes lodged in the oviduct or cloaca. Predisposing factors include calcium deficiency, obesity, inadequate muscle tone, oversized eggs, malformed eggs, and chronic reproductive activity without adequate rest periods between clutches. Symptoms include straining, lethargy, fluffed feathers, abdominal distension, and in severe cases, paralysis of the legs due to the egg compressing the nerves of the lumbosacral plexus. Egg binding is a veterinary emergency requiring immediate professional intervention, which may involve calcium and oxytocin administration, manual extraction, or surgical ovocentesis.

Chronic egg laying, where a hen produces egg after egg without regard to the presence of a mate or nesting stimulus, is a related concern that depletes calcium reserves and places the hen at cumulative risk for egg binding, oviductal prolapse, and metabolic exhaustion. If a hen produces more than two clutches per year, intervene by removing the nest box between breeding cycles, adjusting the light cycle to reduce hormonal stimulation, and consulting with your veterinarian about hormonal management options. In severe cases, surgical implantation of a hormone-modulating device or a salpingohysterectomy may be recommended to protect the hen's long-term health.

Mate aggression is a serious behavioral complication in cockatoo breeding that can result in severe injury or death, most commonly inflicted by the male upon the female. Bare-Eyed Cockatoos are generally less prone to extreme mate aggression than some of the larger cockatoo species, but the risk is not negligible. Contributing factors include inadequate enclosure size, lack of visual barriers or escape routes within the enclosure, hormonal surges, and pair incompatibility that was not adequately assessed before pairing. The flight or cage must always include multiple perching areas, visual barriers, and enough space for the hen to retreat from the male if tension arises. Immediately separate any pair that shows escalating aggression, and reassess compatibility before attempting to reunite them.

Nutritional demands during breeding require dietary adjustment. The hen's calcium intake must increase substantially to support eggshell formation, and both parents benefit from increased protein to sustain the metabolic costs of incubation and chick feeding. Provide a cuttlebone, calcium-fortified pellets, and calcium-rich vegetables throughout the breeding cycle. Soft foods and sprouted seeds offer easily digestible nutrition that breeding pairs often prefer during the intensive chick-rearing period. Monitor both parents' body condition throughout the breeding cycle and adjust feeding to prevent excessive weight loss, particularly in the hen after egg laying.

Responsible breeding of Bare-Eyed Cockatoos extends beyond technical competence in aviculture to encompass ethical considerations that affect the welfare of the birds produced, the species as a whole, and the broader avicultural community. Every breeder has an obligation to ensure that their program produces healthy, well-socialized birds that are placed in permanent, knowledgeable homes, and that the act of breeding does not contribute to welfare problems in the wider cockatoo population.

The reality of cockatoo longevity must be factored into every breeding decision. A Bare-Eyed Cockatoo chick born today may live until the 2080s. The breeder must consider whether the market and the community of potential owners can provide appropriate lifelong homes for every bird produced. Cockatoo rescues and sanctuaries report that they are consistently at or above capacity, receiving birds surrendered due to behavioral problems, noise, destructiveness, or changes in the owner's life circumstances. Breeding beyond what the market of committed, informed owners can absorb directly contributes to this problem.

Screening potential buyers is an ethical imperative. A responsible breeder evaluates prospective owners for their knowledge of cockatoo care, the suitability of their living situation, their realistic understanding of the noise, mess, and behavioral demands of cockatoo ownership, and their commitment to providing veterinary care, proper nutrition, and environmental enrichment for the bird's entire life. A breeder who sells chicks to anyone with the purchase price, without regard to the buyer's preparedness, is complicit in future welfare failures.

Genetic stewardship is the breeder's responsibility to the species. Maintain accurate breeding records that include the parentage, hatch dates, health screening results, and placement information for every chick produced. Avoid breeding closely related birds, and participate in cooperative breeding programs or studbook registries if available for the species. While the Bare-Eyed Cockatoo is not currently endangered, maintaining genetic diversity in captive populations preserves the long-term viability of avicultural breeding programs and guards against the inbreeding depression that has compromised other captive parrot populations.

Consider the welfare of the breeding birds themselves. Hens should not be bred continuously without rest periods between clutches, as chronic reproductive activity depletes their physical reserves and increases the risk of reproductive disease. A maximum of two clutches per year with a rest period of at least four to six months between breeding cycles is a reasonable guideline for maintaining the hen's health. Breeding pairs that prove incompatible should be separated and re-paired rather than forced to coexist in a state of chronic stress. Retired breeding birds deserve a comfortable life after their reproductive years, whether that means placement as companion birds, retention in the breeder's own flock, or rehoming to a sanctuary that can provide appropriate long-term care.