This may be a stupid question, but what do all the different "quack" types mean? I understand the excited "we are getting fresh water quack" - it's accompanied by a head bob. 
But what about the yell-quacks? Like they are out of their mind laughing at me for no reason, obnoxiously loud. Or they are what I call "loafing" on the ground together and I'll get a yell quack.
If they are scavenging I can quack myself and will find them because they quack back lol, am I losing my mind? What do the quacks mean? I think I've spent more time with them over people lately
	
		
			
		
		
	
				
			But what about the yell-quacks? Like they are out of their mind laughing at me for no reason, obnoxiously loud. Or they are what I call "loafing" on the ground together and I'll get a yell quack.
If they are scavenging I can quack myself and will find them because they quack back lol, am I losing my mind? What do the quacks mean? I think I've spent more time with them over people lately
	
 Mine will do it when they see me, hear me, or when they’ve gotten separated and are trying to find their friends.