Hey Venkatesh, two settings I think you should reconsider. Try +1 for the Sensitivity and Accel / Decel. Otherwise, I think you're configured properly for a subject that should be much much closer for better results. This Harrier seems in focus for the 1:1 details of such a small portion of the 7200x4803 frame. "In focus" even with the single AF point slightly off the actual bird. Can you find something you can get closer too, like seagulls or city pigeons or backyard residents simply for the purposes of having something that better fills the frame for confirmation of settings?

venkatesh_eng, Thank you for providing the examples as they let us see the AF and the camera settings. I don't see anything obvious. The image I looked at has a AF zone on the duck. If this 1 frame isn't perfect, and if you 'ripped' 14-40 frames over the next few seconds at 14fps, did the focus improve in subsequent frames? If this bird just took off, did you start the AF from the water through this frame and continuing? With several to chose from, then you can review and pick the best (best pose, best wing position, best sharpness, best exposure, etc).

A few settings to consider:

1) Try Aperture or Shutter priorities rather than Program.

2) Try AUTO ISO with EC to 'position' for 'bright', say at +1 over (to the right) of the 0-mark on the meter.

3) Try Case 3 for the Servo AF.

4) Look at the resulting customizations for Case 3, see of you should / need to add +1 to the Tracking and Acceleration settings if Case 3 doesn't enable these settings automatically.

5) For the LiveView setting, are you shooting with the camera held to your eye or held way and viewing the back?

So, these are good subjects and again thank you for posting so we have a common basis for discussion. Practice and investigation, I think, are what are needed at this point as you have great subjects for practice.

Just another observation, on canon animal eye tracking. It's a great feature and generally works well but when you have a cluttered background, lack of contrast and many animals, i,e, flocks of birds then animal eye tracking has a harder time and will bounce between subjects. The being said it works really well when there is just a single subject on a clear background...say a Canadian Goose against a clear blue sky. Alas our cameras haven't yet reached the A.I level of the HAL 9000. Which may be a good thing..."I can't do that Dave...."

venkatesh_eng, Thank you for providing the examples as they let us see the AF and the camera settings. I don't see anything obvious. The image I looked at has a AF zone on the duck. If this 1 frame isn't perfect, and if you 'ripped' 14-40 frames over the next few seconds at 14fps, did the focus improve in subsequent frames? If this bird just took off, did you start the AF from the water through this frame and continuing? With several to chose from, then you can review and pick the best (best pose, best wing position, best sharpness, best exposure, etc).

A few settings to consider:

1) Try Aperture or Shutter priorities rather than Program.

2) Try AUTO ISO with EC to 'position' for 'bright', say at +1 over (to the right) of the 0-mark on the meter.

3) Try Case 3 for the Servo AF.

4) Look at the resulting customizations for Case 3, see of you should / need to add +1 to the Tracking and Acceleration settings if Case 3 doesn't enable these settings automatically.

5) For the LiveView setting, are you shooting with the camera held to your eye or held way and viewing the back?

So, these are good subjects and again thank you for posting so we have a common basis for discussion. Practice and investigation, I think, are what are needed at this point as you have great subjects for practice.