You should take your cockatiel to the Vet as soon as possible and have her checked over in case she needs medicine to make sure the cuts and scrapes won't get infected.....birds can die easily just from going into shock from any trauma....keep her warm and get to the Vet please and let us know what he says.
It is usually not a good idea to keep parakeets and cockatiels together....even if they seem to get along most of the time.....you are asking for trouble....cockatiels are gentle birds....parakeets are more agressive and unpredictable when housed with cockatiels.
I hope your sweet little birdie will be alright....keep us updated









