The bluebird feeds mainly on insects and other invertebrates (such as moths, worms, flies, ants, etc.), but they will search for berries, especially in winter. You will often see them perched on wires ...

There are almost 10,000 species of birds on Earth and they come in all different shapes and sizes — from the tiny bee hummingbird to the massive ostrich. Here are 12 of the biggest birds to ...