biology

Hooded crane

Hooded crane 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 Hooded crane rather than just read about it. In short: The hooded crane (Grus monacha) is a crane native to East Asia and a frequent migratory bird in Japan. Description It has a grey body.

Key takeaways

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

Reference excerpt

The hooded crane (Grus monacha) is a crane native to East Asia and a frequent migratory bird in Japan.

Description It has a grey body. The top of the neck and head is white, except for a patch of bare red skin above the eye. It is one of the smallest cranes, but is still a fairly large bird, at 1 m (3.3 ft) long, a weight of 3.7 kg (8.2 lb) and a wingspan of 1.87 m (6.1 ft).

Distribution The hooded crane breeds in south-central and south-eastern Siberia. Breeding is also suspected to occur in Mongolia. Over 80% of its population winters at Izumi, southern Japan. There are also wintering grounds in South Korea and China. There are about 100 hooded cranes wintering in Chongming Dongtan, Shanghai every year. Dongtan Nature Reserve is the largest natural wintering site in the world. In December 2011, a hooded crane was seen overwintering at the Hiwassee Refuge in southeastern Tennessee, well outside its normal range. In February 2012, one was seen at Goose Pond in southern Indiana, and is suspected to be the same bird, which may have migrated to North America by following sandhill cranes (Antigone canadensis). In March 2020, seven hooded cranes (Grus monacha) were seen in Siargao, Philippines where it was recorded as the first encounter of the species, since then, they are frequently migrating in the country, mainly on the wetlands in the southern regions.

Conservation The estimated population of the species, as of 2025, is between 9,750 – 13,000 mature individuals. The major threats to its survival are wetland loss and degradation in its wintering grounds in China and South Korea as a result of reclamation for development and dam building. Conservation activities have been taken since 2008. Local universities, NGOs and communities are working together for a better and safer wintering location. The hooded crane is evaluated as Vulnerable on the IUCN Red List of Threatened Species. It is listed on Appendix I and II of CITES. A society, Grus monacha International Aid (白头鹤的故事), has been formed to find ways to protect the species.

References

External links

BirdLife Species Factsheet Hooded Crane (Grus monachus) from Cranes of the World (1983) by Paul Johnsgard

Illustrations

Worked examples

Example 1 — a first encounter with Hooded crane

Start with the simplest possible case. Write down what Hooded crane 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 Hooded crane 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 Hooded crane 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 Hooded crane

In research: Hooded crane 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 Hooded crane 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: Hooded crane is common in secondary-school and first-year university syllabi. It links to neighbouring topics Birds described in 1835, Birds of East Asia, Birds of Manchuria, so understanding it makes those chapters shorter.
In everyday life: Look for Hooded crane 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 Hooded crane in 20 minutes

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

Frequently asked questions

What is Hooded crane in simple terms?

The hooded crane (Grus monacha) is a crane native to East Asia and a frequent migratory bird in Japan. Description It has a grey body.

Why does Hooded crane 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 Hooded crane?

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 Hooded crane.