Loggerhead sea turtles are dark brown to reddish brown in color, sometimes described as the color of a wet brown paper bag. Many have yellow/orange head and flippers. Most loggerheads seen in southern New England waters are juveniles, ranging in length from 15 to 36 inches, weighing from 25 to 100 pounds. Observers have described local loggerheads as the size of a manhole cover or a garbage can lid. They feed on invertebrates such as hermit and spider crabs, mussels, moon snails and whelks.