"Sitting" Sandhill Crane? (1 Viewer)

[Oooopossum]

Hi there. I was recently testing a new Lens I got with a beautiful Sledge of Sandhill Cranes foraging on a hill. I noticed one of the Cranes was "sitting" on the bottom part of its legs (The Tarsus I believe its called). It sat like that for a while as it pecked around and ate. It moved a bit and sat back down in another spot. It did walk and fly so I don't believe it was injured in any way. Does anyone know more about this Behavior? I am trying to learn more about Sandhill Cranes (and cranes in general) as I want to research or work with them in a professional manner.
See attached pics!

 

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Some links:
(OK, this first one is unrelated but I found it interesting) Unusual Sandhill Crane Behavior (compare with 'crouch threat' (???) from Alaska Sandhill Crane 2021; also, other info on this site may be of interest to you)

Sandhill crane (also mentioned is Wood Stork; type: 'wood stork sitting' or 'wood stork kneeling', in Google for more (one of the websites in the results states that herons and egrets do it, too))

Wood Stork Ankles (about bird anatomy)

'sandhill crane kneeling' finds a few additional photos of cranes in that position

two other Asian species doing just that: Do birds kneel? – Bird Ecology Study Group, ©Jabiru’s Prayer – Bird Ecology Study Group