Final answer:
An a covey, a bevy, and a gaggle are terms describing groups of birds, specifically a small group of partridges or quail, a group of swans on the ground or roe deer, and a group of geese on the ground, respectively.
Step-by-step explanation:
The terms a covey, a bevy, and a gaggle are collective nouns used to refer to groups of birds. A covey generally refers to a small group of birds, such as partridges or quail. A bevy is often used to describe a group of birds like swans when they are on the ground or a group of roe deer. A gaggle is specifically used for a group of geese when they are on the ground. Based on the information provided, these terms do not refer to mammals, fish, or insects.
Birds are distinctive from mammals, fish, and insects in many ways. They range in size, live in diverse habitats, and most species have the ability to fly. Birds lay eggs and they are warm-blooded vertebrates. All birds have feathers, which is a characteristic exclusive to this group of animals. They stand out due to their ability to perch, vocalize, and fly, and they fill various ecological niches around the world.