Booby/ˈbuːbi/ Definition 1 of 3Pro Tip 1/3Bird Species The term 'booby' refers to specific seabirds, mostly found in tropical oceans. Birdwatchers were excited to spot a blue-footed booby on the coast. Pro Tip 2/3Unique Features 'Booby' birds have distinctive features like colorful feet and pronounced bills. The red-footed booby's namesake feature is its vivid red feet. Pro Tip 3/3Behavioral Traits Boobies are known for their diving skills, plunging into the ocean for fish. We watched the boobies dive into the sea to catch their prey.