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 ...

This is a great time of year to see birds’ nests. A search for bird nests is like an archaeological dig, without the ground and without the dig. Shrubs and trees are naked, allowing an open ...

When a bird drapes its nest with snake skin, it isn't just making an interesting home décor choice. For some birds, it keeps predators at bay. Researchers combined new and historical data to show ...