kingdom: Animalia
Phylum: Chordata -animals
Phylum: Chordata -animals
- pharyngeal slits - a series of openings that connect the inside of the throat to the outside of the "neck". These are often, but not always, used as gills.dorsal nerve cord - a bundle of nerve fibers which runs down the "back". It connects the brain with the lateral muscles and other organs.
- notochord - cartilaginous rod running underneath, and supporting, the nerve cord.
- post-anal tail - an extension of the body past the anal opening.
- Class: Aves -birds
- horny beak, no teeth
feathers
large yolked, hard-shelled eggs. The parent bird provides extensive care of the young until it is grown, or gets some other bird to look after the young.
strong skeleton
Passeriformes
3 toes forward and 1 back
leg arrangement of passerine birds contains a special adaption for perching
- Troglodytidae
otherwise known as the wren
range in length from 3.5 to 9 inches
weigh between 0.3 and 2 ounces
brown or gray-brown
bills tend to be thin, long, and curved.
Thryothorus