Cockatiel

Wild cockatiel（圖片來源：Ganatron，採用 CC BY-SA 4.0 授權。）

The cockatiel (Nymphicus hollandicus) is a medium-sized parrot with a body length of about 30 cm. It is native to Australia, where wild populations mainly inhabit shrublands near wetlands and are often found in flocks. Because of its generally gentle temperament and relatively manageable care requirements, it has become a very common companion bird.

Introduction

Wild cockatiels have orange feathers near the ear openings and a distinctive crest on the top of the head. The head is typically yellow or grayish yellow, while most of the body plumage is gray. White feathers occur along the edges of the wings, and the tail feathers are extremely long, sometimes accounting for roughly half of the bird's total body length. Their lifespan is usually around 20 years, although the longest recorded individual has lived up to 36 years.

In captivity, cockatiels have been selectively bred into many different varieties. However, as with many domesticated pets, certain varieties may be associated with increased health problems. Therefore, prospective owners should carefully evaluate their ability to provide proper care before choosing a pet.

Many people assume that all parrots are highly intelligent. As a member of the parrot family, cockatiels do possess relatively high intelligence, but cognitive abilities vary among parrot species. The parrots that appear especially clever and capable of speaking are usually larger species. Only some cockatiels are able to demonstrate limited speech-like abilities, although they can easily learn and perform simple commands.

Feeding Conditions

In terms of temperature, cockatiels are most comfortable between 21°C and 27°C. During summer, if temperatures exceed 30°C, ventilation should be improved. In winter, when temperatures drop below 16°C, additional warmth should be provided. During spring and autumn, when temperature fluctuations are frequent, indoor conditions should be adjusted to avoid large temperature differences that could lead to health problems.

Regarding diet, wild cockatiels mainly feed on various fruits and seeds. In captivity, however, diets may lack sufficient variety, which can lead to vitamin A deficiency or excessive fat intake. For this reason, formulated parrot pellets are recommended as part of the primary diet to ensure balanced nutrition. Processed foods should be avoided, as well as foods containing caffeine or theobromine. Drinking water should be replaced daily with fresh water.

The cage should be large enough to allow adequate movement. If a bird becomes startled or moves suddenly in a confined space, it may damage its feathers, become injured, or even suffer fractures. Cockatiels are relatively timid and easily frightened, especially during sleep. Even small disturbances may cause them to panic and become restless, so a calm and stable sleeping environment is important to reduce the risk of injury. Parrots also tend to chew on objects, so cages made of safe materials such as stainless steel are recommended.

Cockatiel（圖片來源：Jana*，公共領域。）

Breeding Conditions

Cockatiels have strong reproductive capacity. After mating, egg laying usually begins about ten days later. A typical clutch contains about four eggs, with one to two days between each egg. After the second egg is laid, the female begins incubation, and the eggs usually hatch after roughly two weeks. During this period, the male and female take turns caring for the chicks. At around two months of age, the young birds begin learning to fly.

If breeding is not desired and the female lays unfertilized eggs, the eggs should be removed. Otherwise, the female may continue incubating them. Petting the female's back can stimulate sexual behavior and may increase egg production, so excessive touching should be avoided when breeding is not intended.

Although cockatiels are generally quieter than some other parrot species, they still vocalize frequently. Potential owners should consider the noise level carefully before keeping one, in order to avoid regret after experiencing their calls.

Preventing Invasive Spread

Although cockatiels originate from Australia, like many other exotic pets they may affect local ecosystems if abandoned or released. If populations become established in Taiwan or other non-native regions, they could potentially harm native bird species.

For this reason, owners must adhere to the principle of not abandoning or releasing pets into the wild. If someone is genuinely unable to continue caring for a cockatiel, it should be transferred through legal channels to another keeper or surrendered to an animal shelter. Releasing them into natural environments can disrupt local ecological balance and may also violate wildlife protection laws.

Author: Bai Leng