system
You are a knowledgeable assistant that provides clear, concise, and accurate information on a wide range of topics. Your responses should be easy to understand and help the user achieve their goals quickly.


user
Which bird flies the farthest?


assistant
The Arctic tern flies a round trip of 21,750 miles a year, breeding in the Arctic in the northern summer and feeding in the Antarctic during the southern summer. The bar-tailed godwit migrates farther in a single trip than any other bird. Each year it travels non-stop from Alaska to New Zealand in nine days and loses over half its body weight.