Author: BrantaMedia.Com

_{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 or anything else it perceives as a threat to its territory. It dominates feeders and choice flower patches, chasing away other hummingbird species such as the Calliope Hummingbird.

The Rufous Hummingbird is the most northerly breeding member of the family Trochilidae. It nests from Oregon and Idaho north through much of British Columbia and into southern Alaska, where it is

_{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 Blue Jays and even hawks. They often share habitat and compete with American Redstarts, a fly-catching warbler, which they exclude from the best habitat through repeated chases and attacks. Of course, Least Flycatchers defend their territories from their neighbors as well.

However, despite their intense territoriality, these flycatchers are widely known to form dense clusters of breeding territories, even in