How Crows Remember Human Faces for Years
A person walks through a city park while an American crow watches from a nearby tree. To a human observer, there may be nothing unusual about the encounter. But suppose …
Bird Intelligence
Why Bowerbirds Build Elaborate Displays Instead of Nests
On the forest floor in eastern Australia, a male satin bowerbird may spend hours maintaining a structure made from carefully positioned sticks. Around it, he places selected objects—blue feathers, flowers, …