Definition

Noun: 1. A small Australian parakeet: A specific, small species of parrot native to Australia, scientifically known as Melopsittacus undulatus. It is typically light green with characteristic black and yellow markings on its head, wings, and back in its wild form.

Usage

The term "shell parakeet" is a common name used to refer to this specific bird, particularly noting the scalloped, shell-like pattern of its markings. It is synonymous with the more widely used common name "budgerigar" or the informal "budgie." - The shell parakeet is one of the most popular pet birds in the world. - In the wild, the shell parakeet's green coloration provides excellent camouflage.

Advanced Usage

• The term is primarily used in aviculture (bird-keeping) and ornithology. It specifically distinguishes the natural, wild-type coloration and pattern from the many color variants produced through selective breeding in captivity.

Variants and Related Words

• Budgerigar (n): The most common formal name for the same bird species.
• Budgie (n): A common, informal shortening of "budgerigar."
• Melopsittacus undulatus (n): The scientific (Latin) name for the species.

Synonyms

• Budgerigar
• Budgie
• Common parakeet

Notes on Different Meanings

• The "shell" in "shell parakeet" refers specifically to the wavy, scalloped pattern of the bird's markings, not to a hard outer covering. It does not refer to a parakeet that lives in or uses a shell.
• While "shell parakeet" describes the wild-type appearance, captive-bred birds of this species, which come in many colors like blue, white, and yellow, are still the same species but are more generically called budgerigars or parakeets.

Noun

1. small Australian parakeet usually light green with black and yellow markings in the wild but bred in many colors