Good eye !
For ID use in Ebird I want the focus on the birds with as much ID detail as possible. High bright 10:30 AM sun from the wrong angle shadowed the birds detail. Also since in DX mode effective focal lenght of 1200 mm in play
So the birds were selected with the masking tool and shadows opened up to show more detail and yes that makes them stand out from the more shadowy background.
I do not shoot for pretty but for ID so for that purpose would not want them toned down
If I was shooting for pretty I would take an entirely different approach to light, position, aperture etc.. but in the run and gun ID world the birds are where and when I find them
So with an opportunistic ID shot like this while shooting a different bird, this time a Baird's Sandpiper which was a life bird for me, if I modify anything in those situations it is to bring out the ID features in the bird.