I was suprised to see this hummingbird at a nature park that I sometimes visit. I witnessed the feistiness of this small critter, it kept on dive bombing a song sparrow that is hiding in a thick bush. I was worried it will get hurt because when it flies thru the leaves I'm sure its hitting some leaves because of the sound it makes. This is one feisty but colorful hummingbird 
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The feistiest hummingbird in North America. The brilliant orange male and the green-and-orange female Rufous Hummingbird are relentless attackers at flowers and feeders, going after (if not always defeating) even the large hummingbirds of the Southwest, which can be double their weight. Rufous Hummingbirds are wide-ranging, and breed farther north than any other hummingbird. Look for them in spring in California, summer in the Pacific Northwest and Alaska, and fall in the Rocky Mountains as they make their annual circuit of the West.
Source:http://www.allaboutbirds.org/guide/Rufous_Hummingbird/id






