Final answer:
Male cedar waxwings engage in courtship by offering food to females, while common terns perform aerial displays and give fish presentations. These rituals are part of a variety of courtship behaviors that males of different species use to attract mates.
Step-by-step explanation:
The courtship behaviors of male cedar waxwings and common terns do not include any of the options provided directly (singing songs, performing elaborate dances, building nests, or displaying colorful feathers). Cedar waxwings are known for their unique courtship behavior that involves the male offering food to the female, often in the form of a berry passed beak to beak. Common terns engage in aerial displays and fish presentations. However, if we generalize courtship behaviors, both these actions can be associated with the concept of males performing courtship to encourage females to choose them as mates, which can include a variety of displays to show off a male's traits.
Males across different species exhibit courtship rituals which are often elaborate and intended to attract mates. For instance, bowerbirds build and decorate intricate structures, while peacocks use their vibrant tail feathers to impress potential mates. These behaviors demonstrate the male's fitness and ability to provide, which is essential in the females' selective mating process.