my muscovies and a friends abandoned their covered wind proof coop  when the weather first dropped and moved to our ponds.... I do have a tiny island in mine but there were 9  birds trying to use it ( one is missing of late, and one is in the hoop coop sitting on eggs).  last night it got down to 9 degrees and with wind chill, it was negative.  I felt bad so instead of making them come to the coop for breakfast, I took a scoop down to the pond. The juveniles  ( about 10 weeks) who dont have all their feathers in, had iced tails and other icicles on them. The adults seemed to have faired better with a full set of feathers.  one of the little girls was dancing as she ate (cold feet?) although the adult drake had no problem moving to the stock pond for a swim.  they have a pallet shelter at the pond but I dont think anyone uses it at night as there is no back door.
Not sure if there s anything more I can or shoud do for them.those icicles just made me feel so bad.
	
		
			
		
		
	
				
			Not sure if there s anything more I can or shoud do for them.those icicles just made me feel so bad.
	
 I agree, the little ones need to be a priority in getting them to stay in the coop. I know you are worried about them so just try your best!
