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Magpie-lark (also known as Mudlark, Peewee, or Murray Magpie)
Tail feather (Rectrix)

Magpie-lark (also known as Mudlark, Peewee, or Murray Magpie)

Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Monarchidae, Genus: Grallina, Species: cyanoleuca

Family: Monarchidae (Monarch Flycatchers)

Shape
Symmetrical to slightly asymmetrical vane with an elongated, somewhat spatulate shape and a rounded tip.
Size
Approximately 12-14 cm (4.7-5.5 inches) in length, matching the scale of the adjacent pen and consistent with adult rectrices.
Rarity
Very Common; one of the most recognizable and frequently encountered birds in Australian residential areas.
Learn more about Magpie-lark (also known as Mudlark, Peewee, or Murray Magpie) in the encyclopedia →

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Description

This feather belongs to the Magpie-lark, a medium-sized monarch flycatcher known for its bold black-and-white plumage. The bird grows to about 25-30 cm and is famous for its complex 'duetting' calls and its habit of building bowl-shaped nests out of mud. In flight, they show a rhythmic, flapping style with distinctive white patches on the wings and tail.

Colour & Pattern

Distinctive bicoloration: The basal half is a clean, stark white, while the distal half is deep jet black. There is a small, slightly faded or buffy-white tip at the very apex, characteristic of wear in some individuals.

Barb Structure

Mostly pennaceous and tightly interlocked throughout the main vane for aerodynamic stability, with a small plumulaceous (downy) section at the base of the calamus.

Texture & Surface

Smooth and glossy on the black portion due to melanin saturation; the surface is stiff and holds its shape well, typical of flight-enabling feathers.

Key Features

The sharp contrast between the white base and black distal half, the specific length of approximately 13cm, and the rounded tip are diagnostic for Grallina cyanoleuca rectrices.

Habitat

Highly adaptable, found in urban parks, gardens, wetlands, grasslands, and agricultural areas, usually near a water source used for building mud nests.

Geographic Range

Widespread and resident across almost all of mainland Australia; also found in southern New Guinea.

Ecological Role

Insectivorous bird that plays a major role in controlling garden pests and beetles. They are important members of the urban ecosystem and serve as hosts for various cuckoo species.

Similar Species

Pied Currawong feathers (much larger and darker), Australian Magpie feathers (different banding and size), and Willy Wagtail feathers (much smaller).

Interesting Facts

Despite the name, they are not related to Magpies or Larks; they are actually large ground-dwelling monarch flycatchers. They are famous for their aggressive territorial behavior, often attacking their own reflections in windows and car mirrors.

Condition Notes

Good condition overall. There is minor fraying at the tip and base, with slight evidence of wear on the leading edges of the vane, suggesting it was likely a naturally molted feather.