biology

List of hornbills

List of hornbills is a biology topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of hornbills rather than just read about it. In short: Hornbills are birds in the families Bucerotidae (the arboreal hornbills) and Bucorvidae (the ground hornbills), which are characterised by their large bills. Hornbills are found in tropical Asia and Africa, and most live in tropical and sub-tropical forests, or savannahs.

Key takeaways

List of hornbills belongs to biology; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of hornbills to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of hornbills from memory before moving on to harder problems.

Reference excerpt

Hornbills are birds in the families Bucerotidae (the arboreal hornbills) and Bucorvidae (the ground hornbills), which are characterised by their large bills. Hornbills are found in tropical Asia and Africa, and most live in tropical and sub-tropical forests, or savannahs. Hornbills usually have casques on their beaks and colourful feathers. Arboreal hornbills nest in tree cavities, in which females seal themselves during incubation. Hornbills are mostly carnivorous, though they also consume fruits. Most hornbill species have declining populations. African hornbill species are threatened by habitat loss, logging, hunting, and climate change. Two species are considered critically endangered, six are endangered, seventeen are vulnerable, six are near threatened, and thirty-one are of least concern. The species with the smallest estimated population is the critically endangered Sulu hornbill, estimated to number fewer than fifty mature individuals. The species with the largest estimated population is the vulnerable Palawan hornbill, which numbers up to fifty thousand mature individuals. The number of extant hornbill species is around sixty, though the exact number is disputed due to taxonomic disagreements. As of 2026, the International Ornithologists' Union recognises sixty-four extant species in sixteen genera. Bucorvidae contains two species in one genus and Bucerotidae contains sixty-two species in fifteen genera. The hornbills are most closely related to hoopoes (Upupidae) and wood hoopoes (Phoeniculidae). These families comprise the order Bucerotiformes. Species of fossil hornbills are known from the Miocene onward, however, the fossil record of the taxon is poor.

Conventions

Conservation status codes listed follow the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. Range maps are provided wherever possible; if a range map is not available, a description of the hornbill's range is provided. Ranges are based on the IOC World Bird List for that species unless otherwise noted. Population estimates are of the number of mature individuals and are taken from the IUCN Red List. This list follows the taxonomic treatment (designation and order of species) and nomenclature (scientific and common names) of version 15.1 of the IOC World Bird List. Where the taxonomy proposed by the IOC World Bird List conflicts with the taxonomy followed by the IUCN or the 2023 edition of The Clements Checklist of Birds of the World, the disagreement is noted next to the species's common name (for nomenclatural disagreements) or scientific name (for taxonomic disagreements).

Classification The International Ornithologists' Union (IOU) recognises 64 species of hornbills across two families and sixteen genera. This list does not include hybrid species, extinct prehistoric species, or putative species not yet accepted by the IOU.

Hornbills

Bucorvidae

Bucerotidae

Notes

References

Illustrations

Worked examples

Example 1 — a first encounter with List of hornbills

Start with the simplest possible case. Write down what List of hornbills claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In biology, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of hornbills before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of hornbills ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of hornbills

In research: List of hornbills appears in biology research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of hornbills in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of hornbills is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bucerotidae, Lists of animal species, Lists of birds, so understanding it makes those chapters shorter.
In everyday life: Look for List of hornbills outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “List of hornbills” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study List of hornbills in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of hornbills means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain List of hornbills out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of hornbills in simple terms?

Why does List of hornbills matter?

Because it connects several biology ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of hornbills?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of hornbills.