Birds
Hornbill
Red-billed hornbill, great hornbill, wreathed hornbill, etc.
Most important: Low-iron pellets plus fruit and insects. Any damage to the casque (the upper bill structure) must be seen by a vet
Basics
- Lifespan
- Small species (red-billed) 15–20 years; large species 30–40+ years
- Weight
- Red-billed 100–220 g; great hornbill 2–4 kg
- Temperament
- Curious and intelligent. Strongly territorial and aggressive during the breeding season
- Care difficulty
- High (iron storage disease, flight space, specialist vets, legal regulations)
- Legal status
- Most Asian species are CITES Appendix I or II. Registration cards and certificates must be kept on file
- Key point
- Low-iron pellets plus fruit and insects. Any damage to the casque (the upper bill structure) must be seen by a vet
Ecology & traits
- Body
- Hollow casque (keratin projection) on top of the bill and long eyelashes. The bases of the 2nd and 3rd toes are fused, so they cannot hold objects with their feet
- Origin & range
- Tropical Africa (red-billed, etc.) and South/Southeast Asia (great hornbill, etc.)
- Wild habitat
- Rainforest canopy; red-billed hornbills live in savanna and dry forest. Nest in tree cavities
- Activity & sleep
- Diurnal. Forage by day and gather on high branches to roost in the evening
- Social behavior & people
- Monogamous with strong, lifelong pair bonds. Defend the nest cavity and territory
Characteristic behaviors
- Pick up fruit or insects with the bill tip, toss them upward into the throat and swallow whole
- The female enters a tree cavity, seals the entrance with mud and droppings to incubate, and the male passes food through a slit
- While incubating, the female sheds all her flight feathers at once, cannot fly, and molts inside the nest
Common illnesses: warning signs & prevention
Iron storage disease
SignsLethargy, swollen abdomen (enlarged liver, fluid buildup), open-mouth breathing, dull plumage; sudden death is possible
PreventionFeed low-iron pellets for frugivorous birds as the staple. Avoid feeding high-iron raisins, spinach and citrus at the same time
Casque and bill damage
SignsCracks, chips or bleeding of the casque, bill deformity, eating on one side only, dropping food, head shaking
PreventionEnough space and soft materials so the bill is not struck against mesh or hard posts. Do not overlook fighting between a pair
Metabolic bone disease
SignsCommon in hand-reared young birds. Bent legs or wings, inability to stand, soft bill, seizures
PreventionDust insects with calcium supplement and provide a UV lamp or sunbathing. Do not feed an unbalanced fruit-only diet
Bumblefoot (pododermatitis)
SignsRedness, swelling or ulcers on the sole, holding one foot up, reluctance to perch
PreventionProvide several natural-wood perches of different thicknesses. Prevent obesity and check the soles weekly
Parasites and digestive tract infections
SignsDiarrhea, undigested fruit in droppings, weight loss, vomiting, white deposits in the mouth (Candida, Trichomonas)
PreventionFecal tests at intake and once a year. Use insects from reliable farmed sources and remove leftover fruit within a few hours
Aspergillosis
SignsOpen-mouth breathing, abnormal breathing sounds, voice change, weight loss. Develops in environments with rotting fruit and mold
PreventionRemove leftover fruit and wet bedding daily. Manage ventilation and humidity; reduce stress from transport and environmental change
Warning-sign checklist
Check once a day. If even one applies, contact an animal hospital early.
First aid for illness
Swollen abdomen, lethargy
Suspect iron storage disease. Keep warm, avoid stimulation and see a vet the same day. Stop iron-containing foods and vitamin C (citrus) and tell the vet what the diet has been
Bleeding from the casque or bill
Press with clean gauze to stop bleeding; keep dark, quiet and warm. Cracks or chips: vet the same day. Heavy bleeding or inability to swallow: vet immediately
Diarrhea, vomiting
Reduce fruit, give a small amount of low-iron pellets, keep warm at around 28°C. Photograph the droppings and see a vet the same day. Watery or bloody droppings: urgent
Open-mouth breathing, breathing sounds
Rest in a dark, quiet place and remove any rotting fruit. Aspergillosis progresses fast; see a vet the same day. Use an oxygen chamber if available
Common injuries: prevention & first aid
Casque or bill fracture
PreventionArrange the enclosure so no mesh or hard posts lie in the flight path. Do not startle or chase the bird inside the cage
First aidDo not touch; cover the head with a cloth, keep dark and warm. Do not splint or glue it yourself. The bird cannot eat, so see a vet the same day
Wing fracture or bruising
PreventionLong flight space and markers on windows and glass. To catch, darken the room first and restrain with both hands rather than a net
First aidHold the wing against the body and wrap lightly in a towel. Rest in a dark box; do not splint yourself and see a vet the same day
Leg or toe fracture
PreventionFencing whose mesh the toes cannot enter, correctly sized leg bands. No hard objects on the floor
First aidSoften the floor and restrict movement. Press bleeding with gauze; if the foot is deformed or hangs limp, see a vet immediately
Bite wounds between a pair
PreventionDuring breeding season, watch for chasing and provide escape routes and dividers. Confirm compatibility thoroughly before housing together
First aidSeparate immediately. Rinse the wound with saline and press with gauze. Wounds to the head, eyes or bill: vet the same day
Zoonoses (diseases that can spread to people)
Salmonellosis
RouteOral infection from hands that touched droppings, food dishes or leftover fruit
PreventionAlways wash hands after care. Wash and disinfect food dishes daily; keep them separate from human dishes
Psittacosis
RouteInhaling dust from dried droppings, mouth-to-mouth feeding
PreventionMist droppings before cleaning and wear a mask. If you have fever or cough, tell your doctor you keep birds
Avian tuberculosis
RouteOral intake or inhalation from an environment contaminated with droppings
PreventionImmunocompromised people should avoid care duties. Chronic weight loss or diarrhea: see a vet and test
Bite wound infection
RouteLacerations and puncture wounds from the large, powerful bill
PreventionHandle with gloves and arm protection. Rinse wounds under running water; if deep or swollen, see a surgeon
Husbandry: food, water, toys, nest, bedding
Food
- Low-iron pellets for frugivorous birds (under 100 ppm iron) as the staple, morning and evening
- Fruit (papaya, grapes, apple, melon, etc.) cut into bite-sized pieces and hand-fed
- Crickets and mealworms dusted with calcium supplement; large species may also have frozen pinky mice
Water
- They get water from fruit, but always provide fresh water in a shallow, wide dish
- Many species dislike bathing. Increase fruit moisture in summer
Never feed
- High-iron foods such as raisins, spinach and liver
- Citrus (vitamin C promotes iron absorption), avocado, chocolate
- Wild-caught insects, wild bird feed, processed foods high in salt or sugar
Toys & play
- Hide food in containers or holes in logs and let the bird search with its bill
- Light wooden blocks or balls to toss around (too large to swallow)
- Thick natural branches to rub the bill on and promote wear of the casque
Nest, bed & hideout
- For a breeding pair, provide a wooden nest box with a narrow entrance plus mud or clay for sealing
- Outside the breeding season, use a high perch as the sleeping spot
Bedding & litter
- Bark chips or soil on the floor; remove dropped fruit daily
- Newspaper or pet sheets for small species. Replace immediately when wet
- Droppings are projected outward, so clean the walls daily too
Housing: cage, exercise, temperature & humidity
Cage / housing material
Wooden frame with welded wire mesh (fine enough that the bill cannot enter); board over surfaces the casque may hit
Size & space
Flight cage at least 3 m wide even for small species; large species need at least 6 m wide and 3 m high
Layout
- Place perches at both ends so the bird can fly across the cage
- Put the feeding platform high up, where droppings will not fall on it
- Sleeping spot at the highest, quietest rear point; nest box where sight lines are blocked
Placement notes
- As tropical birds, move them to a heated indoor space in winter. Outdoors, provide shade and a windbreak
- Block the view of passers-by and other animals; design so cats and crows cannot approach
Exercise, free-roam & walks
- Flight inside the cage is the norm. For indoor free flight, cover windows and remove hazards
- Hand-feed daily for contact and check weight, bill and soles
- When separating a pair, make sure both have room to flap
Temperature & humidity
Temperature22–30°C. Below 15°C, heating is required
Humidity50–70%. Excessive dryness damages the bill and skin
Summer & winter
- Summer: shade and ventilation; air conditioning above 35°C. Watch for rotting fruit and feed small amounts frequently
- Winter: keep indoors at 22°C or above; place heaters where the bird cannot touch them
Grooming & protection from predators
Nail trimming
Worn down on natural wood. If overgrown, trim only the tips with proper clippers; use styptic powder for bleeding. Large species: have it done at the vet
Brushing, skin & coat care
Not needed. The bird preens itself. Painting the bill with yellow pigment from the preen gland is normal
Other care
Check the casque and bill weekly for overgrowth and cracks. Have a vet reshape (cope) an overgrown bill
Protection from predators
- Outdoor housing needs double mesh that crows, cats, weasels and snakes cannot get through
- Never let it out in the same space as dogs, cats or other birds
- Prevent mosquitoes and mites with screens and cleaning; a roof so wild bird droppings cannot fall in
Care precautions (accident prevention)
Foreign-body ingestion
Because they toss and swallow whole, they can swallow marbles, buttons, screws and large fruit pits. Leave no swallowable small objects around; if swallowed, see a vet urgently
Being stepped on
They get stepped on while foraging on the floor. Watch your feet when entering, and place floor dishes against the wall
Getting pinched
The long bill or toes get caught in doors and nest box lids. Close doors slowly and use a fixed nest box lid
Falls
A bird with a fracture or weakness may fall from a high perch. Lay thick, soft bedding; if it falls and cannot move, see a vet immediately
Escape
Double doors and a lock check every time. If it escapes, lure it back with food and report to the police and municipal office. Give them the CITES registration card number
How to safely release a bite
Never do this
- Grab the bill and force it off (the casque or bill may break)
- Hit it or shout (it will bite harder)
Safe release procedure
- Stop moving and do not pull the bitten part away
- Cover the head with a cloth to darken and calm it
- Show a favorite fruit to get the bill to open
- Once released, return it to the perch and keep your distance for the day
After the release
Bites from large species are deep. Rinse under running water and apply pressure; if bleeding does not stop or there is swelling or heat, see a surgeon
Emergency care manual
Go to an emergency vet now (life-threatening)
- Heavy bleeding from the casque or bill, or a break that prevents eating
- Swollen abdomen with open-mouth breathing, lethargy
- Drooping wing or leg, unable to move on the floor
- Seizures, unconsciousness, swallowed a foreign object
See a vet the same day
- Cannot eat, drops food when tossing
- Diarrhea, vomiting, weight loss of 5% or more
- Cracked casque, bite wounds between a pair
What to tell the vet & what to bring
Weight, diet, dropping records and photos, iron content of the pellets, CITES registration card. Confirm in advance that the clinic treats hornbills
Checking consciousness, breathing & heartbeat
- Breathing: watch the chest and tail rise and fall, open-mouth breathing and breathing sounds
- Heartbeat: place a finger beside the keel bone and feel for a rapid beat
- Consciousness: cover with a cloth and check response to sound and touch and eye movement
Resuscitation steps
- Chest compressions risk fractures. Dark, quiet warmth is the top priority
- Place in a warming box at 28–30°C; do not put water or food in the mouth
- Wipe debris from the bill and nostrils to clear the airway; use an oxygen chamber if available
- While doing the above, call a clinic that treats hornbills and transport immediately
Stopping bleeding
- Press the site with clean gauze for several minutes
- For bill or nail bleeding, press on styptic powder or potato starch
- For casque bleeding, do not press too hard; keep gentle pressure while transporting
Transport
- Cover the head with a cloth; use a large box or hard carrier the bill will not strike
- Non-slip mat on the floor, keep warm at around 28°C, carry gently without shaking
Learn with the case method
Case method (50 scenario questions)
Multiple-choice scenarios covering illnesses, injuries and accidents that can happen to Hornbill, with answers, explanations, issues and improvements.
Start the questions
https://exoticpetsaver.com
For hands-on training, join a course. Scan the QR code with your phone (courses are held in Japan, in Japanese).