generate questions: Aristotle noted that cranes traveled from the steppes of Scythia to marshes at the headwaters of the Nile. Pliny the Elder, in his Historia Naturalis, repeats Aristotle's observations.
Who noted that cranes traveled from Scythia to the Nile? {sep_token} Who repeats Aristotle's observations? {sep_token} Where did Pliny the Elder repeat Aristotle's observations? {sep_token} What kind of bird did Aristotle and Pliny the Elder write about?