_{This YouTube video was produced by the American Bird Conservancy.}

At a tad over 3 inches long, the feisty red-and-orange Rufous Hummingbird (Selasphorus rufus) is a tiny warrior, readily attacking birds many times its size, as well as large insects

_{This YouTube video was produced by the American Bird Conservancy.}

The Least Flycatcher (Empidonax minimus) is a small but fierce bird of North American forests, known for its fearlessness in confronting birds much larger than itself, including formidable foes like

_{This YouTube video was produced by the American Bird Conservancy.}

Hummingbirds are a true wonder of the Americas – from their bright colors and speedy flight to their astonishing diversity (more than 360 species!) and incredible migrations. These tiny but