A cleverness of crows

摘要

The infamous crow family - mischief-makers, messengers and omens of death; beautiful in sleek iridescence and magisterial in their swagger. Their scientific name is Corvidae, and as well as crows they include ravens, rooks, jackdaws, jays, magpies, choughs, treepies and nutcrackers. There are over 120 species and they're astoundingly successful in habitats ranging from the Arctic to deserts, from coasts to the Himalayas, and from wilderness to inner cities.