Drafts ------ Contrary to popular opinion, drafts are not harmful to healthy pet birds. A draft is really nothing more than a slight movement of air, usually accompanied by a mild temperature drop. A bird's feathers provide insulation against temperature extremes far in excess of what a draft represents. Therefore, drafts are usually inconsequential to pet birds. The notable exception to this generality is the cool and sometimes cold air produced by air conditioners. Most caged birds cannot tolerate the rapid temperature extremes produced by thermostatically controlled air conditioners. For this reason, cages and perches should not be positioned directly beside or beneath air conditioning, heating and ventilation outflows. Furthermore, sick birds should always be removed from drafty circumstances to prevent heat loss.