Son of Godzilla- (Possible Deleted Scene Pic.)

I'm pretty sure it's just a production still of Godzilla sitting down on Sollgell Island, possibly around the same time where he was resting while Minilla was running off and got attacked by Kamacuras. Toho has maintained that Godzilla has always been male and implied that Minilla was just the egg of another member of his kind that was laid long ago and whose brainwaves just attracted Godzilla. Godzilla really had no intent to raise Minilla like a son, just rescue him from the Kamacuras and train him to his fullest potential.

^This, this post above me, every word of it.

^Yep.  Its most likely a candid shot of Nakajima/Sekita (depending on who was in the suit at the time) resting between takes.  Its definitely not Godzilla nesting.

^ That's what I assumed.

A lot of Godzilla movies have production photos of shots that were not scenes in the final movie. They were simply staged photos to promote the movie. Like these: