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White-eyed parakeet

White-eyed parakeet 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 White-eyed parakeet rather than just read about it. In short: The white-eyed parakeet (Psittacara leucophthalmus), known in aviculture as white-eyed conure, is a species of bird in the subfamily Arinae of the family Psittacidae, the African and New World parrots. It is found in every mainland South American country except Chile and also on Trinidad.

White-eyed parakeet — main illustration
White-eyed parakeet — illustration

Key takeaways

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

Reference excerpt

The white-eyed parakeet (Psittacara leucophthalmus), known in aviculture as white-eyed conure, is a species of bird in the subfamily Arinae of the family Psittacidae, the African and New World parrots. It is found in every mainland South American country except Chile and also on Trinidad.

Taxonomy and systematics The white-eyed parakeet was for a time placed in the genus Aratinga but from about 2013 has been in its present genus Psittacara. It has these three subspecies:

P. l. callogenys (Salvadori, 1891) P. l. leucophthalmus (Müller, P.L.S., 1776) P. l. nicefori (Meyer de Schauensee, 1946) What is now Finsch's parakeet (P. finschi) was for a time treated as a fourth subspecies of white-eyed parakeet, and they now constitute a superspecies. The white-eyed parakeet's specific epithet is derived from the Ancient Greek leukos "white" and ophthalmos "eye".

Description The white-eyed parakeet is 32 to 35 cm (13 to 14 in) long with a 37 to 40 cm (15 to 16 in) wingspan. It weighs 100 to 218 g (3.5 to 7.7 oz). The sexes are alike. Adults of all subspecies are mostly green that is paler on their underparts. They have red flecks on their head and neck. The bend and edge of their wing and their outermost lesser underwing coverts are also red. Their outermost greater underwing coverts are yellow. The undersides of their flight feathers and tail are olive. Their eye is orange surrounded by bare white to yellowish white skin and their bill is horn colored. Subspecies P. l. callogenys is larger and darker green than the nominate P. l. leucophthalmus. Subspecies P. l. nicefori has a red band on its forehead. Juveniles resemble adults, but have little or no red on the head and wings.

Distribution and habitat The nominate subspecies of the white-eyed parakeet has the widest distribution. It is found in Trinidad, eastern Venezuela east through the Guianas, and south through Brazil into Bolivia, Paraguay, northern Argentina, and Uruguay. Its Brazilian range does not include the upper Amazon Basin or the dry northeastern part of the country. Subspecies P. l. callogenys is found in southeastern Colombia south through eastern Ecuador into northwestern Peru and east into the upper and central Amazon Basin south of the Amazon River. P. l. nicefori is known only from the type specimen that was collected in central Colombia. The white-eyed parakeet inhabits a wide variety of landscapes, most of which are somewhat open. These include the edges of dense forests and nearby savannahs, secondary forests, gallery forests, várzea forests (especially in Ecuador), palm groves, mangroves, and clearings in rainforests. It is generally a bird of the lowlands, reaching 700 m (2,300 ft) in Colombia and 1,100 m (3,600 ft) in Ecuador but occurring as high as 2,500 m (8,200 ft) in Bolivia.

Behavior The white-eyed parakeet congregates in flocks that may number several hundred birds and include other parrot species. It roosts communally in trees and also in cane fields and caves.

Movement The white-eyed parakeet is non-migratory but apparently roams in response to food availability.

Feeding The white-eyed parakeet's diet is mostly fruit but also includes seeds, flowers, and small numbers of arthropods. It visits clay licks.

Breeding The white-eyed parakeet's breeding season varies widely across its very large range. It nests in cavities in trees and palms. The clutch size is three to four eggs. In captivity, the incubation period is four weeks and fledging occurs nine weeks after hatch.

Vocalization The white-eyed parakeet is very vocal, especially in flight with "a grating chattering interspersed with higher-pitched shrieks" described as "r'teet-r'teet-tiw-". It also makes "[s]harp squeaky notes and loud harsh calls" described as "scree-ah".

Status The IUCN has assessed the white-eyed parakeet as being of Least Concern. It has an extremely large range but its population size is not known and is believed to be decreasing. Large numbers have been exported or kept domestically in the pet trade but no immediate threats have been identified. It is considered common over much of its range, though less so at the northern and southern edges of it. It occurs in some protected areas.

Aviculture Though not as popular as some of the more colorful parakeets, the white-eyed parakeet can become a sweet, loving and talkative pet. They are seldom destructive and are generally not screamers, often choosing to mimic speech instead. Although many breeders ignore this species, those that do breed them appreciate their good parenting skills. Breeding requirements for white-eyed parakeets are much the same as for other parakeet species. They will usually start to nest in March or April, sometimes breeding throughout the year and having four to six clutches. The clutch size is usually four eggs. Chicks will sometimes start to talk by the time they are weaned and generally will talk by six months of age. White-eyed parakeets are sometimes confused with Finsch's parakeets because both have red and yellow epaulets under their wings. The white-eyed parakeets lack the red triangle on the forehead as adults. In captivity, they can live for 25–30 years.

References

External links

Stamps (for French Guiana, Paraguay) with ~RangeMap

Illustrations

White-eyed parakeet illustration
White-eyed parakeet illustration
White-eyed parakeet illustration
White-eyed parakeet: In Brazil
In Brazil
White-eyed parakeet: White-eyed parakeets feeding, apparently on queen palm fruit
White-eyed parakeets feeding, apparently on queen palm fruit

Worked examples

Example 1 — a first encounter with White-eyed parakeet

Start with the simplest possible case. Write down what White-eyed parakeet 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 White-eyed parakeet 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 White-eyed parakeet 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 White-eyed parakeet

In research
White-eyed parakeet 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 White-eyed parakeet 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
White-eyed parakeet is common in secondary-school and first-year university syllabi. It links to neighbouring topics Animal intelligence, Birds described in 1776, Birds of South America, so understanding it makes those chapters shorter.
In everyday life
Look for White-eyed parakeet 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 White-eyed parakeet in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what White-eyed parakeet means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain White-eyed parakeet out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is White-eyed parakeet in simple terms?

The white-eyed parakeet (Psittacara leucophthalmus), known in aviculture as white-eyed conure, is a species of bird in the subfamily Arinae of the family Psittacidae, the African and New World parrots. It is found in every mainland South American country except Chile and also on Trinidad.

Why does White-eyed parakeet 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 White-eyed parakeet?

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 White-eyed parakeet.

Tags

  • Animal intelligence
  • Birds described in 1776
  • Birds of South America
  • Birds of the Guiana Shield
  • Fauna listed on CITES Appendix II
  • IUCN Red List least concern species
  • Parakeets
  • Psittacara
  • Species that are or were threatened by the pet trade
  • Taxa named by Philipp Ludwig Statius Müller

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