What is this?
Black tail area, gray back with black stripes, tan/gray neck, short.
Tricky image, but those feathers belong to Kori Bustard, posture a bit confusing here, head down. In ASG001v2cb we see the view here 1 minute earlier.
P.S. These identifying-questions are best and easiest to ask in that blue comment-box below image, so reply can be given directly into image. That way helps also others best, who may classify the same image, when they see original capture and all comments below image 😃