I have been fortunate enough to never encounter IBD firsthand, or any other major reptile health problems so have only read descriptions of stargazing and never seen it firsthand.

I was in a shop a couple times the past few days and there is one red tail that has been in the corner of the cage every time with about 1/3 of its body resting vertically in the corner nose straight up in the air. Is this stargazing or just hanging out in the corner? How much of their body will they hold upright when exhibiting this symptom, and will it be freestanding as opposed to against the corner like this fellow is doing?

Also can IBD affect colubrids - corns, milks, hognose?