Ranging in size from the relatively small pigeon-size jackdaws to the common raven of the Holarctic region ... In Europe, the word “crow” is used to refer to the carrion crow or the hooded ...

Three are ravens; two are crows. They are very closely related and ... "They can make tools to help make other tools, which is next level in terms of puzzle-solving ability.

The researchers said RAVEN is around the scale and weight of a crow, at 1.3 pounds (600 grams), with a roughly 40-inch (100 centimeters) wingspan and 20-inch (50 cm) body. The team said these ...