biology

Variable goshawk

Variable goshawk 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 Variable goshawk rather than just read about it. In short: The variable goshawk (Tachyspiza hiogaster) is a bird of prey native to Indonesia, Papua New Guinea and the Solomon Islands. It was recently elevated to species status, and was previously lumped together with the grey goshawk.

Key takeaways

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

Reference excerpt

The variable goshawk (Tachyspiza hiogaster) is a bird of prey native to Indonesia, Papua New Guinea and the Solomon Islands. It was recently elevated to species status, and was previously lumped together with the grey goshawk. This species was formerly placed in the genus Accipiter.

Subspecies Twenty-two subspecies are recognised:

T. h. sylvestris (Wallace, 1864) – Sumbawa to Alor Island (west, central Lesser Sunda Islands). Lesser Sundas goshawk is sometimes elevated to species status. T. h. polionota (Salvadori, 1889) – Damar Island and Babar Islands (east Lesser Sunda Islands), Banda and Tanimbar is. (south Moluccas) T. h. mortyi (Hartert, EJO, 1925) – Morotai (north Moluccas) T. h. griseogularis (Gray, GR, 1861) – Halmahera, Ternate, Tidore and Bacan Islands (north Moluccas) and Gebe (northwest of New Guinea) T. h. obiensis (Hartert, EJO, 1903) – Obi Islands (central north Moluccas) T. h. hiogaster (Müller, S, 1841) – Kelang (north of northwest Seram), Seram, Saparua (south of west Seram) and Ambon (central east Moluccas) T. h. pallidiceps (Salvadori, 1879) – Buru (central west Moluccas) T. h. albiventris (Salvadori, 1876) – Tayandu Islands and Kai Islands (southeast Moluccas) T. h. leucosoma (Sharpe, 1874) – New Guinea and many satellites T. h. misoriensis (Salvadori, 1876) – Biak (Geelvink Bay islands, northwest New Guinea) T. h. pallidimas (Mayr, 1940) – D'Entrecasteaux Archipelago (east of southeast New Guinea) T. h. misulae (Mayr, 1940) – Misima and Tagula Island (west, central, Louisiade Archipelago, east of southeast New Guinea) T. h. lavongai (Mayr, 1945) – New Hanover Island, New Ireland and Dyaul Island (south of northwest New Ireland; northeast Bismarck Archipelago) T. h. matthiae (Mayr, 1945) – Mussau Island (St Matthias Islands, central north Bismarck Archipelago) T. h. manusi (Mayr, 1945) – Admiralty Islands (northwest Bismarck Archipelago) T. h. dampieri (Gurney, JH Sr, 1882) – Umboi Island (west of New Britain) and New Britain and satellites (southeast Bismarck Archipelago) T. h. lihirensis (Stresemann, 1933) – Lihir Island and Tanga Islands (east of central New Ireland; northeast Bismarck Archipelago) T. h. bougainvillei (Rothschild & Hartert, EJO, 1905) – Buka Island, Bougainville Island and Shortland Islands (north Solomon Islands) T. h. rufoschistacea (Rothschild & Hartert, EJO, 1902) – Choiseul Island, Santa Isabel and Florida Islands (central east Solomon Islands) T. h. rubianae (Rothschild & Hartert, EJO, 1905) – New Georgia (central west Solomon Islands, except Ranongga) T. h. malaitae (Mayr, 1931) – Malaita (southeast Solomon Islands) T. h. pulchella (Ramsay, EP, 1882) – Guadalcanal (southeast Solomon Islands)

References

Illustrations

Worked examples

Example 1 — a first encounter with Variable goshawk

Start with the simplest possible case. Write down what Variable goshawk 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 Variable goshawk 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 Variable goshawk 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 Variable goshawk

In research: Variable goshawk 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 Variable goshawk 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: Variable goshawk is common in secondary-school and first-year university syllabi. It links to neighbouring topics Accipitriformes stubs, Birds described in 1841, Birds of prey of New Guinea, so understanding it makes those chapters shorter.
In everyday life: Look for Variable goshawk 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 Variable goshawk in 20 minutes

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

Frequently asked questions

What is Variable goshawk in simple terms?

Why does Variable goshawk 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 Variable goshawk?

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 Variable goshawk.