The advantage vs heavy lenses is that by the time your tripod is set, the bird is gone...
Underneath image was shot in RAW and converted in DPP4 with +3 shadow area lift.
Resized from approx 3000px widest side to 1250px & ©.
Native OOC sharpness, contrast, color tone and saturation.
No extra post-processing.
In-camera settings are pasted in the image.

Thanks for looking,
Kindest regards,
Stany