The massive annual spring migration of America's birds – millions of them – is underway. Here's how to follow along at home.

Birds can be classified into two groups: diurnal and nocturnal. Most birds are diurnal, meaning they are awake during ...

A report about nocturnal animals and birds and their adaptations. The report shows footage of barn owls, mice, hedgehogs, bats, badgers, moles and worms. Students could become nature detectives ...

A report about nocturnal animals and birds and their adaptations. The report shows footage of barn owls, mice, hedgehogs, bats, badgers, moles and worms. Students could become nature detectives ...