The Ruby-throated Hummingbird (Archilochus colubris), is a small hummingbird. It is the only species of hummingbird that regularly nests east of the Mississippi River in North America. The Ruby-throated Hummingbird is 7-9 cm long with an 8-11 cm wingspan, and weighs about 3 g. Adults are metallic green above and greyish white below, with near-black […] read more