hoatzin: crested ill-smelling South American bird whose young have claws on the first and second digits of the wings
chordate: any animal of the phylum Chordata having a notochord or spinal column
rabbit brush: pleasantly aromatic shrub having erect slender flexible hairy branches and dense clusters of small yellow flowers covering vast areas of western alkali plains and affording a retreat for jackrabbits; source of a yellow dye used by the Navajo