Traditional cormorant fishing in Asia involves tethered birds used to catch fish, raising welfare questions about restraint and fishing conditions.
Welfare assessments of working cormorants are complex. The snare prevents swallowing and causes some discomfort, particularly when birds catch many fish before being rewarded. However, well-managed birds often show no signs of chronic stress. The primary welfare concern is inadequate reward systems where birds fish for long periods without receiving food. Regular feeding, shelter, and veterinary care are essential.