When snow falls upon my yard in good amounts, I look for hardy winter birds just 5.5 inches long and weighing about as much as a slice of bread to appear beneath my feeders. They’re called Am… ...

The male was seriously aggressive toward a visiting solo male, defending both his female and, perhaps, the seed-fall from the feeder hanging over the water. [ On the Trails: Tracks and king eiders ] ...

Courtesy of Houghton Mifflin Co. THE AMERICAN TREE SPARROW has a red-brown cap and a black spot on the breast. The bill is dark above and yellow below. It has two whitish wing bars. This was ...

A House Sparrow building a neat round nest in a tree is an odd and seldom-seen sight. Recently, in western North Dakota I watched a male House Sparrow busily constructing a round grass nest in the ...

The American tree sparrow and some really cool ducks will be leaving soon. The spring bird migration is really ramping up, as we’re hearing an audible increase in blackbirds and seeing waterways ...

Tree sparrows are also being trapped and colour-ringed, to determine the numbers that survive in a colony from year-to-year. Individual birds will also be tracked, to see how they move around the ...

The tree sparrow's call is a modest "chip," whereas the song is a more musical arrangement of "chips" and "chirps." * Where to find them: A common Japanese bird, ...