White-throated Sparrows have a very commonly heard song in winter and early spring. "Oh sweet Canada"
House Sparrows, along with Rock Doves (pigeons) and European Starlings, are one of the most common bird in N. America. They were introduced into this country from Europe in the mid-19th century and thrive in areas with man-made structures like this one for nesting. Very agressive birds, they are known to evict Eastern Bluebirds, Purple Martins, and Tree Swallows from their homes.