 There is abundant birdlife including the scrub jay, Steller's jay, acorn woodpecker, black phoebe and junco.A number of amphibians occur near the creek and its tributary elements, including the rough skinned newt, "Taricha granulosa".Many of Yulupa Creek's high headwater tributaries are dry in the summer, since rainfall is highly seasonal, with most of the approximately of annual precipitation occurring between the months of October and April