Corvids are among the most cognitively complex birds. Their high intelligence makes their welfare in research and captive settings a particularly significant concern.
The extraordinary cognitive abilities of corvids create a correspondingly significant welfare responsibility in captive and research settings. Animals capable of episodic memory, tool manufacture, and theory of mind require environments that challenge and engage these capacities. Corvids in barren conditions develop behavioral abnormalities including feather destructive behavior and stereotypic movements that indicate severe welfare compromise. Research protocols using corvids must include enrichment, social housing, and meaningful cognitive tasks as minimum welfare standards. Their intelligence also means they are better able to anticipate and respond to routine procedures with anxiety, requiring careful positive training to minimize research-related distress.