Forest ravens forage in pairs or groups of up to ten birds, though they may gather in much larger numbers if there is an abundant food source, such as a large carcass, rubbish or insect swarm. The species is attracted to areas where people have discarded excess food, such as rubbish tips, picnic grounds, parks, gardens and roads. Forest ravens sometimes forage in mixed-species flocks with Torresian crows, little and Australian ravens. In these situations, the more abundant species may exclude the less abundant. In Tasmania, forest ravens have been recorded foraging with Pacific and silver gulls, and black currawongs. Foraging takes place in the early morning or late afternoon; birds rest in the hotter part of the day. Food is taken mainly from the ground, birds either finding objects while walking along and looking, and turning over objects with their bills as they go. Forest ravens often fly above the ground over marshland, heath or beaches looking for food. Nests of various birds, including domestic chickens and burrowing seabirds have been raided for eggs and young. Forest ravens have been observed attempting to raid the nest of ospreys on the New South Wales north coast.