This is one more image in my series of this young Northern Harrier chasing a murder of crows at the Ridgefield NWR, Aug. 12, 2014. The harrier repeatedly flew up and then executed a dive toward the top of a tree where the crows were gathered. This image is right before one of the dives. Needless to say, the crows were not happy about the situation. Canon 5D Mark III, 1/1250, f4, ISO 1250, 500mm, 9:51 a.m.
If you missed them, two other images in this sequence can be seen here and here.