question about duckling behavior???

[Hennyhandler]

I have two new ducklings. WOOHOOO!!

I realized as I was watching them that they would open their bills and kind of move their tongues and then close their mouth again. It almost looks like they are yawning. I do not know though. It is not something that really seems to bother them, just wondering.

Also, today which is the second day with me, they will run around

and be fine but then when they simply stand they seem wobbly. It looks like they are trying to balance and if their weight tips one way to far they wobble back to be balanced. But like I said they can run around and walk fine. They also don't seem bothered by this.

Just wanting to make sure everything is good with my little babies!!