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 ...

Biologist Auke-Florian Hiemstra says the birds seem to be using the spikes ... "For the first few minutes, I just stared at it - this strange, beautiful, weird nest," Mr Hiemstra explained.

These elaborate constructions are just some of the birds' nests found at the Natural History Museum in Tring, UK, one of the ...

Here’s what else to know. Despite the fact that birds are all around us, there’s a reason we don’t see nests everywhere: ...