
Magpie-lark (also known as Peewee, Mudlark, or Little Magpie)
Kingdom: Animalia, Phylum: Chordata, Class: Aves, Order: Passeriformes, Family: Monarchidae, Genus: Grallina, Species: cyanoleuca
AI-generated identification · may be incorrectFamily: Monarchidae (Monarch Flycatchers)
- Shape
- Highly asymmetrical vane with a narrow leading edge and a broad trailing edge. The tip is rounded, and there is a subtle emargination on the outer vane near the tip.
- Size
- Approximately 14-16 cm in length, which is consistent with the primary flight feathers of a medium-sized passerine like the Magpie-lark.
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Description
This feather comes from the Magpie-lark, a bold black-and-white monarch flycatcher. Adult birds are roughly 30cm long with a piercing pale eye. They are famous for their coordinated 'duetting' songs and their unique bowl-shaped nests made of mud and grass. They are frequently seen walking on the ground with a rhythmic head-bobbing motion.
Colour & Pattern
Distinctive bicolor pattern: the basal two-thirds is a clean white, while the distal third (tip) is a solid, deep black or dark charcoal. The transition between colors is sharp with a slight diagonal slant.
Barb Structure
Tightly interlocked pennaceous barbs for the majority of the vane to provide aerodynamic lift. The base of the feather shows some plumulaceous (downy) barbs near the superior umbilicus.
Rachis & Barb Pattern
The rachis is stiff and dark (pigmented) in the black distal section, transitioning to a pale or translucent white in the lower section. Barbs are densely packed.
Texture & Surface
Smooth and stiff with a slightly glossy finish on the black portion. The surface is streamlined for flight efficiency. The trailing edge is softer than the rigid leading edge.
Feather Placement
Outer wing (primary). The strong asymmetry and curved rachis indicate it is an outer flight feather responsible for generating thrust.
Key Features
Sharp bicolor contrast (white base, black tip), primary feather asymmetry, and a size corresponding to a large songbird.
Habitat
Ubiquitous across various environments including urban parks, gardens, wetlands, grasslands, and riparian woodlands. They are famously adapted to human-altered landscapes.
Geographic Range
Resident throughout mainland Australia (except for the driest deserts) and southern New Guinea. They do not migrate but may move locally following rain.
Ecological Role
Insectivorous predator. They play a vital role in controlling invertebrate populations. They are also known to be aggressive defenders of their territory, often chasing away much larger birds.
Similar Species
Australian Magpie feathers (usually larger, differently patterned), Pied Butcherbird feathers (different color distribution), and Australian White Ibis (much larger and different texture).
Interesting Facts
Despite the name, they are not closely related to true Magpies or Larks; they are actually large monarch flycatchers. They are one of the few birds in the world that perform synchronized singing in a perfectly timed duet to defend territory.
Cultural Significance
In Australia, they are widely known by the onomatopoeic name 'Peewee' due to their call. They are respected by gardeners for eating lawn pests like armyworms. Historically, they have little commercial use, but are a staple of Australian suburban culture.
Field Identification Tips
Look for these feathers in summer and autumn during the post-breeding molt. They are often found on suburban lawns, near park ponds, or under large eucalyptus trees where birds roost.
Condition Notes
Excellent condition. The vane is intact without significant fraying or fault bars, suggesting it was recently molted or lost from a healthy bird.