Hummingbirds are incredibly quick and agile, so
predators have a difficult time catching them.
This explains the hummingbird's legendary
cockiness in the face of danger; in the North
American East for example, hummingbirds are often
seen mercilessly harassing (and overcoming) large
hawks as they vie for territory during migration.
They do have their predators, though. These
include numerous other bird species (from orioles
to roadrunners), but perhaps the most surprising
is the praying mantis. The ability of a praying
mantis to pose motionless and strike with
lightning speed at an unsuspecting hummingbird
presents a real risk.