Each year, these birds typically build new, bowl-shaped nests using leaves, rushes and reeds. But, while nesting in cities, they often supplement these natural, biodegradable materials with man ...

The Italian ecologist knew the trash hung from the nests of a certain bird, the black kite. But why? Many species of birds decorate their nests to attract a mate—but kites already have partners ...

Since plastic never truly disappears, every bit of old nesting material remains as the birds stack new layers of material, one breeding season after another. Scientists have previously used ...