It does look like he's just yawning, dear! Sometimes when they do it repeatedly, they could be adjusting their crop. If it's a normal resting time during this video, I see nothing alarming here. If you notice a lot of breathing sounds, discharge, or he stays fluffed or lethargic, take him to a vet.
Okay fantastic news! I figured much but like I said, I am very new and unfamiliar with his behavior yet. It is the cutest thing ever! He hasn't had any crazy breathing sounds, discharge or lethargy/fluffed. He did sneeze earlier today which was the cutest thing ever