Overview
The White-eared Catbird (Ailuroedus buccoides) is an intriguing, emerald-plumaged passerine native to the rich lowland rainforests of New Guinea. Although biologically classified within the bowerbird family (Ptilonorhynchidae), it is celebrated for departing entirely from typical bowerbird breeding antics: rather than building elaborate display bowers or performing polygynous rituals, white-eared catbirds form devoted monogamous pairs that defend permanent territories and jointly raise their offspring.
Biology and Physical Characteristics
Ailuroedus buccoides sports vivid moss-green plumage across its back and wings, providing masterclass camouflage among sun-dappled rainforest foliage. Its diagnostic feature is a prominent snowy-white ear patch and malar area bordered by dark mottling, set against a warm buffy-brown or ochre crown. The underparts are pale yellowish-ochre speckled with dark olive markings. Its bill is exceptionally heavy, stout, and ivory-horn colored, equipped with sharp tomial edges capable of cutting through tough tropical fruit rinds and crushing hard beetle carapaces.
Behavior and Ecology
The white-eared catbird derives its name from its uncanny vocal repertoire, which includes nasal wailing, coughing wheezes, and sharp clicks reminiscent of a distressed feline. Pairs forage diligently through subcanopy vine tangles, plucking wild figs (Ficus) and epiphytic fruits while scanning for arboreal arthropods. Mated pairs collaborate to construct a deep, bulky cup nest composed of dried twigs, vine tendrils, and broad dead leaves bound together inside a climbing fern or vine fork, with both adults taking active turns feeding their chicks.
Conservation and Human Impact
Assessed as Least Concern by the IUCN, the white-eared catbird remains common across its expansive New Guinean forest range. Because of its dependence on continuous forest cover and fruiting fig canopies, maintaining extensive unfragmented lowland rainforest tracts is critical to its long-term health.
Interesting Factoid
Unlike most of their flamboyant bowerbird relatives who spend weeks constructing elaborate decorative avenue bowers to attract mates, white-eared catbirds build no bowers whatsoever, choosing strict lifelong monogamy and shared parental care instead.
Last updated: October 2026