There are only seven species of swans in the world, and two of them are native to North America. By far the most common is the Tundra Swan.
Bird feeding can help backyard birds or expose them to new threats. Learn simple changes that keep the birds at your feeders safe.
Common Ravens and Turkey Vultures are about the same size and share roadkill, but ravens also eat insects, grain, fruit, and eggs. Learn how the two compare.
My son Eddie and I got up early one morning this week to see a rare bird that was reported a few hours to the north: the Harlequin Duck.
Northern Cardinals are one of our most beloved backyard birds. They're known by many nicknames, including red-bird and Virginia Nightingale.
Winter is the best time to see American Tree Sparrows in Pennsylvania. Learn how to identify these flocks in weedy fields.
