Artamidae

[2][3] The artamids are part of the superfamily Malaconotoidea, a lineage which is widespread through Australasia and consists of a vast diversity of omnivorous and carnivorous songbirds.

With few studies and dispute on the inclusion of Cracticidae within the family Artamidae, it appears they have been placed in this respective joint position due to lack of evidence or knowledge.

The results suggested that the group may have existed in Australasia for 33.7 to 45 million years, dating back to the late Eocene[5] Kurrartapu is a fossil species known from a proximal tarsometatarsus from the Early Miocene at Riversleigh in central Queensland.

While some species are sedentary, staying close to suburbia and ample food sources, others are migratory or even nomadic like the masked woodswallow, moving around in response to changes in climate such as rainfall or temperature.

[14] The plumage of the artamids is relatively dull, most birds showing a combination of greys, earthy browns, blacks and patches of white.

There is seldom sexual dimorphism in plumage, but when it occurs the males are brighter and the females appear dull or resemble juveniles.

[15] The notarium, a fused vertebra of the shoulder in birds that helps brace the chest against the forces generated by the wings, is a distinctive osteological trait that has evolved repeatedly in the passerines including the family Artamidae.

[17] The habit of clustering is believed to serve two purposes: retaining body heat during cooler weather and as a social form of camouflage.

Bigger species such as the grey currawong prey on many vertebrates, including frogs, lizards such as skinks, and juveniles of smaller birds such as the native eastern spinebill Acanthorhynchus tenuirostris or the introduced house sparrow Passer domesticus.

While species will sometimes overlap vertical terrains, most woodswallows use the upper canopy, feeding on insects and pollen, while magpies and currawongs tend to use the ground or swoop down from the mid-story pouncing on their food.

Roadkill is considered to contribute significantly to the population decline of many bird species, especially opportunistic feeders like the Artimidae, which often unconsciously swoop down on an insect without seeing an oncoming car.

The Australian Magpie showing its plumage.
Black-faced woodswallows roosting as a group