We have two cockatiels. We ve seen it both ways in books. Our nights are generally not cold. Actually, whether you cover the birds or not is not really important. Take a common sense approach.
Birds are very hardy creatures and can cope with a wide range of conditions if healthy.
In fact covering may be detrimental, as poor cage air quality can result due to reduced air flow. Our grateful thanks to Dr Adrian Gallagher for his answers to questions in this edition of Vet's Corner. Please also respect our Copyright and Disclaimer notices for all information contained on this site.