Inquisitive and often mischievous, crows are clever toolmakers that learn from one another. Research shows that crows fashion twigs into spears and hooks to access food and use road traffic for cracking tough nuts. Corvids also recognize individual humans and act differently around people they are familiar with -- sometimes even leaving gifts for those who feed them. Endre Penovác captures the antics of these intelligent tricksters in his gracefully abstract yet detailed portraits of them at p