Hummingbirds use hawks as their bodyguards. They often live under hawk nests to seek protection from jays, one of the biggest threats to their babies. Hawks like to stalk their prey from above, so jays avoid foraging below them, which creates a hummingbird safety zone. Source
Ruff landing: 7 pound dog survives large bird attack on April 23 2014 near Cashmere, Wash. - Marcia Green says after she let her Shih Tzu named Truffle into the yard she heard loud barking and then silence. Truffle was gone. Green began looking and found Truffle about 300 feet from the house, barely conscious. A veterinarian treated the dog for six puncture wounds, a punctured lung and broken ribs.