biology

Writhed hornbill

Writhed hornbill 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 Writhed hornbill rather than just read about it. In short: The writhed hornbill (Rhabdotorrhinus leucocephalus), also known as the Mindanao wrinkled hornbill, is a species of hornbill in the family Bucerotidae. It is endemic to primarily lowland forests on the Philippine islands of Mindanao, Dinagat and Camiguin Sur.

Key takeaways

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

Reference excerpt

The writhed hornbill (Rhabdotorrhinus leucocephalus), also known as the Mindanao wrinkled hornbill, is a species of hornbill in the family Bucerotidae. It is endemic to primarily lowland forests on the Philippine islands of Mindanao, Dinagat and Camiguin Sur. It formerly included the Walden's hornbill as a subspecies, but unlike that species, both sexes of the writhed hornbill have orange-red throat and peri-ocular skin. The writhed hornbill is threatened by habitat loss and hunting.

Description

Ecology and behavior Diet is mainly fruit but also feeds on insects, small mammals and reptiles. Forages in across large areas usually with Southern rufous hornbill. Flocks as large as 37 birds have been recorded. All hornbills are monogamous and mate for life.They are cavity nesters and rely on large dipterocarp trees for breeding. The female seals itself within the tree cavity and the male is in charge of gathering food for its mate and chicks. The male stores food in a gular pouch and regurgitates it to feed its mate and chicks. Cooperative breeding wherein immature birds from previous seasons help out in feeding the female and chick have not been observed with this species so far. Among Philippine hornbills, it has only been recorded with the Rufous hornbill. Species specific information on its breeding habits are limited. Nest has been recorded in March but fledged young also recorded as early as January. Lays 2 eggs in captivity and the entire nesting cycle including incubation and fledging took 92 days.

Habitat and conservation status

It is found in tropical moist lowland forest up to 1,000 meters above sea level but more common below 500 meters. IUCN has assessed this bird as near-threatened species with the population continuing to decline. While there are no official population estimates, it is believed that population does not exceed 10,000 individuals. This species' main threat is habitat loss with wholesale clearance of forest habitats as a result of logging, agricultural conversion and mining activities occurring within the range, it is also hunted for food and for the illegal pet trade. Occurs in a few protected areas like Mount Apo, Pasonanca Natural Park, Mount Timolan Protected Landscape and Mount Kitanglad but actual protection and enforcement from illegal logging and hunting are lax.

References

BirdLife Species Factsheet.

Illustrations

Worked examples

Example 1 — a first encounter with Writhed hornbill

Start with the simplest possible case. Write down what Writhed hornbill 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 Writhed hornbill 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 Writhed hornbill 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 Writhed hornbill

In research: Writhed hornbill 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 Writhed hornbill 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: Writhed hornbill is common in secondary-school and first-year university syllabi. It links to neighbouring topics Birds described in 1816, Birds of Mindanao, Bucerotiformes stubs, so understanding it makes those chapters shorter.
In everyday life: Look for Writhed hornbill 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.

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How to study Writhed hornbill in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Writhed hornbill 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 Writhed hornbill out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Writhed hornbill in simple terms?

Why does Writhed hornbill 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 Writhed hornbill?

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 Writhed hornbill.