The Brown Creeper is a bird that can sometimes be heard singing on the Berkeley campus. The Brown Creeper is active on the trunks of trees in forests. This species is insectivorous and uses its long, curved bill to probe in in the bark for food. Taken together, the above description characterizes the of the Brown Creeper.

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the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.