Common Raven (Corvus corax), Red-tailed Hawk (Buteo jamaicensis) lower.
Greenwood Cemetery, Brooklyn, NY, Winter, 2013
Last week the word was that a red-tail had been harassing the raven. The raven clearly was chasing the hawk here. We could hear croaking intimidating vocalizations from the raven. I had just a split second to take this shot because they are both about to fly away. The raven looks very confident here.