Snake was exhibiting rattlesnake behavior (shaking its tail.)
About 2 feet long.
black all over except for white chin, smooth scales. Basking.
Yup, at least 4-1/2' long.
When the black racer was found, it appeared to have an unusual lump in its stomach, but when handled it began to throw up and out came a live brown snake. Both babies.
Coluber constrictor is a species of nonvenomous, colubrid snake, endemic to North America and Central America. Eleven subspecies, including the nominotypical subspecies, are recognized, which as a group are commonly referred to as the eastern racers.