Small cage birds including canaries and finches are popular pets whose welfare needs for flight space and social companionship are frequently underestimated.
The welfare of small cage birds is widely neglected because their silence and apparent passivity when confined masks significant distress. Canaries and finches are highly mobile birds that in natural settings fly continuously throughout the day. Cage environments that prevent flight produce birds with atrophied flight muscles, reduced bone density, and behavioral indicators of chronic stress. The solution is not merely a larger cage but genuine flight space — an aviary or room access — that allows the natural movement patterns these birds require. Social species kept alone represent an additional welfare failure that companion species can address.