Adult White-winged Magpies have dark head and upperparts, a gray underside, pale wing markings, a long tail, and a heavy red bill.
In adults, the head, neck, and breast are sooty brown, the back and tail are dark, and the underside is gray. The wings have white to yellow-white markings.
It uses tropical evergreen and secondary forests and may also occur along cultivated edges.
It sometimes moves in groups. Its diet is poorly known, but invertebrates and berries are reported as likely foods.
An extinction-risk assessment has not been added yet.