Finally found some cooperative Indigo Buntings yesterday that would routinely come down from the treetops. The females stay in the prairie grass while the males perch up high in the nearby trees and they call back and forth to each other nonstop. Every now and then the males come down for a quick checkup and grab some dinner before heading back to the trees again. I would follow where the female was calling from, then set up my camera in that direction and wait for the bright blue male to come down in the same area.
Captured with the Canon EOS-1D X and Canon EF 500mm f/4L IS USM +1.4x III on August 9, 2019 at 7:21 PM. I used AI Servo AF mode (with MF assistance) and multi-segment metering. Auto WB setting.
Raw processed in DPP4.