Upload & Sell: On
Couple format crops @ 4:3 and 1:1
Gave it a flip as well for possible perspective change.
The thing here is that .... you've got a nice capture, so your options for presentation are many, there isn't likely to be a "right" one ... just your preference.
That being said, I think with the strong gaze of the eyes / beak leading us horizontal, I'd stay in landscape or square rather than portrait. Imo, going portrait makes it "portrait" like ... robbing the viewer of the inferred environment associated with an "environmental portrait" ... if that makes any sense.
The third one is simply a reverse (back to original orientation) of the first one (that left vs. right thing that we've debated before), and of course, the obvious drama change.
I find it interesting that I feel the third image (original orientation) has too little negative space (@ left), yet it is the exact same as the first image, which I feel is adequate negative space (@ right). Not sure how much of that is due to the flip, the drama or the frame differences. But, no matter, I guess the salient point is that they all work in conjunction with each others' nuance to induce the visual response from our viewer.
I've added the fourth one for easier left vs. right comparison ... just in case anyone was curious.