It can be very hard to say no.
If you take them in you will need to use a real lice/mite killer. DE is not effective in treating active infestations.
They will need light in the shed from windows or light bulbs. Hard to know it's time to eat if it's dark.
A heat lamp can be used to make a warm spot. I don't like them but those birds are likely weak and may need the heat.
I don't use one and agree they likely are acclimated to the cold BUT If you do choose to use one.....
SECURE IT! Then secure it again. Then maybe secure it a third time.
I would hate to read that you had a fire from a fallen lamp.
If you take them in you will need to use a real lice/mite killer. DE is not effective in treating active infestations.
They will need light in the shed from windows or light bulbs. Hard to know it's time to eat if it's dark.
A heat lamp can be used to make a warm spot. I don't like them but those birds are likely weak and may need the heat.
I don't use one and agree they likely are acclimated to the cold BUT If you do choose to use one.....
SECURE IT! Then secure it again. Then maybe secure it a third time.
I would hate to read that you had a fire from a fallen lamp.