Migrating raptors is my latest challange, and a few good opportunities presented themselves for me to practice on. Boy, what a spot - you only have a second or two to react when the unseen birds clear the trees above you. Once they see you, your opportunity is lost as they take evasive action to avoid you.

Canon 7D with 500mm IS f4 lens @ 1/1250 handheld, f4, ISO 400, +1 2/3 exposure compensation. Cropped vertically. A bit of blue lost during post-processing replaced.

I realize that nornally I'd probably have more in-focus keepers if I used a tripod with a 500, but in the physical setting where I see my birds, reaction time handheld is much quicker for me. To facilitate carrying the lens and camera, I now use a military one-point tactical rifle sling, which keeps my gear snug across my chest, ready for quick use. It is composed of a bungee cord and quick release snaps and is worn across a shoulder and your back.

Cheers,

Mike