What's the difference between a raven and a crow?

Both birds are black in color and they look similar but there are many differences between them.

You will see many references to raven birds in movies to indicate something unusual.

Ravens are distinguished from crows by their  larger size, tail shape, larger bill and flight pattern.

A raven weighs about 40 ounces while a crow weighs 20 ounces, half the weight of a raven.

A raven's wingspan is 3.5-4 feet and about 24-27 inches from head to tail.

A crow has a wingspan of 2.5 feet and is about 17 inches long from head to tail.

Ravens have wedge-shaped tails and crows have fan-shaped tails.

 The common raven makes a variety of calls including "croooaaak", "cr-r-ruck", "tok", and "wonk-wonk."

 The common crow makes a loud caw or awk call. This is often voiced in a short series - "caw caw caw."