T he Giant Hummingbird of western South America is not one species but two, according to an international group of researchers. The northern population stays in the high Andes year-round while the ...

Southern Giant Hummingbird prepares to take flight. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for ...

The smallest can weigh less than two grams. The largest, the giant hummingbird found in Peru and Chile, tips the scales at around 20 grams. You could send something that weight in the U.S. mail ...