Expect to see a lot more hummingbirds in the coming weeks as they start returning from their winter vacations. What Happens ...

Which presentation did you like best? Why? Aaron Backlund liked looking at the dead hummingbirds in the tubes. He learned that hummingbirds flap 60 to 80 times per second. He learned that ...

and they think they are dead, but they're just in that torpor state,” Fox said. Sullivan said that while rare, the sighting is not unprecedented. Another Costa's hummingbird was spotted in ...