So, I am pondering building an approximately 180sq ft aviary primarily to house 4-6 ornamental ducks, ring teal, Mandarin possibly wood duck. I intend it to have several small ponds, a mulberry tree, ornamental grasses and other plants.... I (while Im hearing*not recommended*) am wondering, are there any types of song bird or parakeet that is cold hardy, who may peacefully co exist with these types of ducks if I were able to provide perching and fresh water sources aside from the ponds. 
I have been having trouble finding information on this.
	
		
			
		
		
	
				
			I have been having trouble finding information on this.
 
	 
 
		 
 
		 
			
		
		
		
	
	
			
		 
 
		 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		