Medium Sulphur-Crested Cockatoo
A clever, devoted cockatoo with all the charm — and all the demands — of her larger cousins.
Origin
Aru Islands and southern New Guinea (Indonesia and Papua New Guinea)
Lifespan
40–60 years
With proper nutrition & care
Size
14–15 inches (36–38 cm)
400–480 g (14–17 oz)
Quick Facts
| Origin | Aru Islands and southern New Guinea (Indonesia and Papua New Guinea) |
|---|---|
| Size | 14–15 inches (36–38 cm) |
| Weight | 400–480 g (14–17 oz) |
| Lifespan | 40–60 years |
| Care level | Advanced |
| Noise level | Loud, especially at dawn and dusk, with carrying contact calls and occasional full-volume screams. Quieter than a Greater Sulphur-Crested but still unsuitable for shared-wall living without careful planning. |
| Talking ability | A moderate to good talker with a typical vocabulary of ten to thirty words and phrases, often delivered with strong emotional inflection. Many excel at mimicking household sounds, whistles, and laughter. |
| Beginner-friendly | 2/10 |
The Bird
Medium Sulphur-Crested Cockatoo at a Glance
The Medium Sulphur-Crested Cockatoo (Cacatua galerita eleonora), often called the Eleonora Cockatoo, hails from the Aru Islands and parts of southern New Guinea. She is the smallest of the four C. galerita subspecies, and in my aviaries here in West Palm Beach she consistently proves to be one of the most personable cockatoos I place. Adults stand around 14 to 15 inches from crest to tail and typically weigh between 400 and 480 grammes — noticeably more compact than the Greater Sulphur-Crested, yet every bit as bright, expressive, and emotionally rich. With committed care, an Eleonora can share your life for forty to sixty years.
What sets the Eleonora apart from her larger cousin is not simply size. The temperament is, in my experience, a touch softer and a shade more biddable. They tend to be slightly less explosive in volume, slightly more inclined to settle into a household routine, and noticeably more apartment-tolerant — though I would never describe any cockatoo as quiet. The crest is the same glorious sulphur-yellow fan, the eye-ring a delicate powder blue, and the intelligence behind that gaze is unmistakable. They are problem-solvers, escape artists, and emotional sponges.
My placement philosophy with Eleonoras is simple and non-negotiable: this is not a starter parrot. I place them with families who have either kept a medium-to-large parrot before or who have spent serious time around cockatoos and walked in with eyes wide open. I want to know your daily schedule, who is home, what your neighbours are like, and whether you understand that a hand-fed baby will become a forty-year emotional commitment. When the fit is right, the bond is extraordinary. When it is wrong, these birds suffer — and I will not be part of that.
Eleonoras are deeply affectionate, almost theatrically so. A well-socialised baby will lean into your neck, ask to be scratched behind the crest, and invent little games to keep your attention. They are clowns — mine routinely hang upside down, dance to the kettle, and present toys like offerings. That charm is real, but it comes paired with a powerful need for interaction. A neglected cockatoo is a screaming, plucking cockatoo, and the species does not bluff about this.
Bonding tends to be intense. Eleonoras often choose a favourite human and can become possessive of that person, particularly during the hormonal years from roughly four onwards. I coach every family I place with on rotating handling between household members from day one — feeding, training, bedtime routines — so the bird learns the whole family is her flock, not just one chosen partner. Done properly, this prevents the classic cockatoo pattern of biting the spouse who walks past.
Household dynamics matter enormously. These birds read tension like a barometer. Shouting, slamming doors, chaotic schedules — all of it lands on the bird. They do best in calm, predictable homes with at least one adult who genuinely enjoys having a feathered shadow for several hours a day. With other pets they can be sociable or scrappy depending on rearing; I always supervise introductions and never leave a cockatoo unsupervised with dogs or smaller parrots.
Vocalization & Talking
Let me be direct: every cockatoo is loud, and the Eleonora is no exception. She is somewhat quieter than a Greater Sulphur-Crested or a Moluccan, but at dawn and dusk she will announce herself to the entire street. Expect contact calls that carry through walls, plus the occasional full-volume scream when she is excited, frustrated, or simply pleased to see you. If your neighbours share a wall, have an honest conversation before you bring one home.
Talking ability is moderate to good. Most Eleonoras pick up a working vocabulary of ten to thirty words and phrases, often delivered with uncanny timing and emotional inflection. They are better mimics of household sounds — microwaves, laughter, the dog — than of long sentences. Some individuals become genuine little conversationalists; others prefer whistles, kisses, and made-up cockatoo songs.
For apartment living, I will only place an Eleonora into a apartment under specific conditions: detached or end-unit, tolerant or absent immediate neighbours, and a family willing to manage noise with routine, foraging, and out-of-cage enrichment rather than punishment. A bored cockatoo in a small space is a recipe for noise complaints and a returned bird. A well-stimulated one in the right setting can absolutely thrive.
Diet
I feed and recommend a pellet-based diet as the foundation — Harrison's High Potency or Adult Lifetime, TOPs, or Roudybush Maintenance — making up roughly 60 to 70 percent of daily intake. Pellets give a stable nutritional baseline that seed mixes simply cannot match, and cockatoos on a pellet base have dramatically fewer fatty liver and calcium issues over their long lives.
The remainder of the diet is fresh produce and limited healthy extras. Daily I offer dark leafy greens, broccoli, carrot, sweet potato, peppers, snow peas, sprouted legumes, and small amounts of fruit such as apple, papaya, or pomegranate. A few raw almonds, walnuts, or a piece of palm nut make excellent training rewards and support the species' natural craving for healthy fats. Variety matters: rotating produce keeps them engaged and nutritionally covered.
Avoid avocado, chocolate, caffeine, alcohol, onion, garlic in quantity, fruit pits and apple seeds, and anything salted, fried, or heavily processed. Steer well clear of all-seed mixes as a staple — they drive obesity and liver disease in cockatoos. Fresh water changed at least twice daily is non-negotiable, as cockatoos love to dunk food and foul their bowls quickly.
Health & Lifespan
With proper diet, enrichment, and routine veterinary care, a Medium Sulphur-Crested can live forty to sixty years. The conditions I watch most closely in this subspecies are:
- Psittacine Beak and Feather Disease (PBFD) — viral, devastating, and tested for in every bird I place
- Feather-destructive behaviour and self-mutilation, almost always rooted in boredom, hormonal stress, or loneliness
- Fatty liver disease (hepatic lipidosis) from seed-heavy or high-fat diets
- Chronic egg-laying and reproductive issues in unpaired hens
- Aspergillosis and other respiratory infections, particularly in poorly ventilated homes
I require every family to establish care with a board-certified avian veterinarian within the first month of placement and to schedule annual wellness exams thereafter. To find a qualified avian vet near you, use the Association of Avian Veterinarians directory at https://www.aav.org.
Housing
Cage minimums for an Eleonora are 36 by 28 by 48 inches, with bar spacing of 3/4 to 1 inch and horizontal bars on at least two sides for climbing. Bigger is always better. I personally prefer a 40 by 30 footprint or larger for a bird who will spend any meaningful time inside the cage. Stainless steel is worth the investment — these beaks destroy powder coat, and lead or zinc contamination is a real risk with cheap cages.
Enrichment is not optional with this species. I rotate four to six toys weekly: shreddable wood, foraging boxes, leather strips, palm fronds, puzzle feeders, and destructible softwood. A bored Eleonora will redirect that powerful beak onto her own feathers, your woodwork, or her cage bars. Foraging — making her work for portions of her food — is the single most effective behavioural tool I teach every new family.
Out-of-cage time should be a minimum of three to four hours daily, ideally more, supervised on a play stand, gym, or bird-safe room. They need to climb, flap, forage, and interact. A cockatoo locked in a cage for ten hours a day is a cockatoo on the road to plucking and screaming. If your schedule cannot accommodate that level of engagement, this is not the right bird for your home — and I would rather tell you that now than place a baby into the wrong life.
Frequently Asked Questions
- How is the Medium Sulphur-Crested different from the Greater Sulphur-Crested?
The Eleonora is smaller — around 14 to 15 inches versus 18 to 20 — with a slightly softer temperament and somewhat less ear-splitting volume. The personality, intelligence, and emotional needs are otherwise very similar.
- Are Medium Sulphur-Crested Cockatoos good for beginners?
No. I rate them advanced. Their forty- to sixty-year lifespan, daily interaction needs, noise level, and tendency toward feather-destructive behaviour when neglected make them unsuitable as a first parrot.
- Can I keep an Eleonora Cockatoo in an apartment?
Only in specific circumstances — detached or end-unit, tolerant neighbours, and a family committed to enrichment and routine. Shared-wall apartments are almost always a poor fit for any cockatoo.
- How much out-of-cage time does this species need?
A minimum of three to four hours daily of supervised, interactive time. More is better. Cockatoos confined for long stretches reliably develop screaming and plucking issues.
- Do you ship birds, or do I need to come to West Palm Beach?
I strongly prefer in-person pickup at my West Palm Beach facility so I can meet the family and walk you through care. For the right home outside Florida, I will discuss flight nanny arrangements case by case.