Corvids — crows, ravens, jays, and magpies — are among the most cognitively sophisticated birds, with intelligence approaching that of great apes and welfare implications that follow.
Corvid cognitive complexity has profound welfare implications: animals capable of planning, tool use, face recognition, and possibly self-awareness have a richer subjective life than simpler animals. Corvids kept in captivity without appropriate cognitive enrichment experience intellectual frustration equivalent to imprisoning a highly intelligent person in a bare room. Their natural problem-solving behaviour requires an environment that provides genuine cognitive challenges — not just food and shelter.