Here is a video showing one of the critters I had to contend with while trying to record a bird for Bird Songs of the Smokies.
Here is a video of a male Ruby-throated Hummingbird. In this video you can see how long the tongues on these birds really are. This, in fact, is what the bird uses to extract the nectar from flowers. You can see how handy it would be in the case of deep, trumpet-shaped flowers.
For additional bird videos, click here.