what is a bird in science terms

Both the terms Aves and Neornithes apply to birds.

Hope this helps.

Another possibility (can't tell exactly what the question is asking) is that a bird, in science terms but not everday terms, is a reptile.

The newer classifications attempt to be monophyletic, so the term reptile includes all reptiles and all animals descended from reptiles, which would include birds.

In science terms, a bird is classified as a member of the Class Aves. Birds belong to the group of warm-blooded vertebrates characterized by their feathers, beaks, and laying hard-shelled eggs. They are highly adapted for flight, although flightless birds like penguins and ostriches also fall under this classification.

To determine what a bird is in science terms, you can follow these steps:

1. Start by understanding the concept of animal classification, which is essential in science. Animals are divided into different groups based on certain characteristics, such as their physical features, behavior, and evolutionary history.

2. Learn about the hierarchical classification system used in biology called taxonomy. The biological classification of organisms follows a hierarchy, from broad categories down to specific groups. The highest category is the Domain, followed by Kingdom, Phylum, Class, Order, Family, Genus, and species.

3. Next, focus on the Class level of taxonomy, which categorizes animals with shared characteristics. Birds are part of the Class Aves, which includes all types of birds around the world.

4. Explore the defining features of birds, such as their feathers, beaks, and ability to lay hard-shelled eggs. Feathered flight is a characteristic unique to birds, although not all birds are capable of flying.

5. Study the diverse species within the Class Aves, from common ones like crows, sparrows, and pigeons to exotic birds like peacocks, owls, and parrots.

By following these steps and understanding the scientific classification system, you can accurately define a bird in scientific terms as a member of the Class Aves.