biology

Plain nightjar

Plain nightjar 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 Plain nightjar rather than just read about it. In short: The plain nightjar (Caprimulgus inornatus) is a species of nightjar in the family Caprimulgidae. It breeds in the southern Sahel, Southern Sudan, the Horn of Africa and the southwestern Arabian Peninsula.

Key takeaways

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

Reference excerpt

The plain nightjar (Caprimulgus inornatus) is a species of nightjar in the family Caprimulgidae. It breeds in the southern Sahel, Southern Sudan, the Horn of Africa and the southwestern Arabian Peninsula. It migrates to lower latitudes - including central Congo and northern Tanzania. A rather plain looking nightjar with grey-brown, brown, and rufous morphs. Males have white spots on primaries (4 feathers), large white corners to tail, and no white on the throat (may show black spots on the crown and scapulars like Star-spotted Nightjar). Females have buffy-brown wing spots, and no white on the tail.

Conservation status This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Distribution Sub-Saharan Africa and south-western Arabian Peninsula. Western Africa: Mauritania, Senegambia, Senegal, The Gambia, Guinea-Bissau, Guinea, Mali, Sierra Leone, Liberia, Ivory Coast, Burkina Faso, Ghana, Togo, Benin, Nigeria, Niger, Chad, Cameroon, Central African Republic, Equatorial Guinea, Democratic Republic of Congo Eastern Africa: Sudan, Eritrea, Ethiopia, Somalia, Kenya, Uganda, Tanzania and recently sighted in Rwanda Akagera national park in March 2022 Arabian Peninsula: Saudi Arabia, Yemen

Taxonomy This is a monotypic species[1]. Three subspecies are recognised by some authorities: C. i. inornatus, C. i. malbranti, C. i. ludovicianus[2]

Habitat Thornscrub.

References

Illustrations

Worked examples

Example 1 — a first encounter with Plain nightjar

Start with the simplest possible case. Write down what Plain nightjar 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 Plain nightjar 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 Plain nightjar 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 Plain nightjar

In research: Plain nightjar 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 Plain nightjar 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: Plain nightjar is common in secondary-school and first-year university syllabi. It links to neighbouring topics Birds described in 1869, Birds of the Middle East, Birds of the Sahel, so understanding it makes those chapters shorter.
In everyday life: Look for Plain nightjar 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 Plain nightjar in 20 minutes

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

Frequently asked questions

What is Plain nightjar in simple terms?

Why does Plain nightjar 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 Plain nightjar?

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 Plain nightjar.