Is 50*F too cold for 4 week old ducks?

[Daina]

Hello all!
I am on my second set of ducks as my first were mallards and would not go back in the pen. Sad story, they all are gone.
I now have 7 four week old ducks and they were born with their mothers and were kept outside.
Temps are due to fall to 50 tonight and I forgot if this is too cold for month old rouens, magpie and pekins.
Any suggestions as they went directly to the pen when I got them 2 weeks ago?
Thanks for your answers and suggestions in advance!

 

[Nyssa03]

I would give them a warm place -- since they no longer have their mothers. A heat lamp where they can use it if they want to or move away if they are warm enough.