Some of the propellants contain freon. Glass and metallic ornaments and lights hung on Christmas trees can be broken. The sharp edges can cause cuts, both externally and internally. Bubbling light fluid contains a toxic solvent which irritates eyes. Consider using wooden ornaments and edible garlands made of things like popcorn, cranberries or even colored paper.
Electrical cords are another source of danger.
Avoid metallic wrapping papers which can contain heavy metals. Eating any kind of wrapping paper should be avoided to prevent the possibility of intestinal blockage. Visitors - Holidays also mean visitors, activity, late nights and noise. Visitors may unknowingly feed your bird something toxic such as alcohol, coffee, avocado and chocolate. Watch for your birds reactions to individuals.