It is not necessary to cover the bird's cage at night as long as the bird
doesn't get any drafts.
Drafts are what can make your cockatiel sick not cold temperatures itself.
Many cover a
males cage just so the humans can sleep in longer.
Photo credits: blue
peachfaced lovebird by Vera Appleyard, black-cheeked
lovebird by Deb Sandidge, Madagascar lovebird by Gwen
Powell (bird owned by Roland Dubuc), Fischer's lovebird
by Lee Horton.
