These birds sing a lovely song. Mountain blue birds can be identified by their thin bill, stocky body and forked tail. Males are a soft peacock blue, and females are grayish blue. The trees found in Red Rocks Park include mountain mahogany, three-leaf sumac, cottonwoods and ponderosa pine. Wild plum and chokecherry trees are found in the gulch south of the Trading Post.
Wildflowers serve as natural groundcover throughout the park.
Its large white four-petal flower opens in the evenings and wilts the next day. Since only one flower opens at a time, the plant may bloom for days or even weeks throughout summer. However, in some unusual cases it has been known to grow tree-like reaching heights up to 15 feet. It is primarily found on hillsides, in canyons and along streams. The fruit has a bitter taste if eaten before it is ripe, giving rise to the name chokecherry.