Some of them have red colors that are close to the ears as well. The Gray Fox has a very long tail with black color at the tip of it. They donât have a bushy tail though like so many other species do. Full grown males weigh about 15 pounds with the smaller females about 8 pounds.The males are about 15 inches height with the females averaging 12 inches.ne of the larger species of fox is known as the Gray Fox. They get the name due to the various shades of gray coloring they feature. They also have black on their bodies and areas of white.