The American tree sparrow often occurs in flocks of up to 50 birds. In habitat and behavior, they are much like field sparrows, but American tree sparrows are more frequent at bird feeders.

How to Choose a Sparrow Bird Feeder If you don’t want to have seed all over the ground ... visit a ground sparrow feeder or seed pile. American tree sparrows are very common visitors at seed ...

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

They weren't draped in the American flag on the ... and learned that one of these brown birds, the Eurasian Tree Sparrow, wasn't actually that boring at all. It was still the color of dirt so ...

This African sparrow is a true beauty with its deep chestnut plumage. Males are particularly stunning, displaying a rich reddish-brown hue during the breeding season. A striking bird with speckled ...