Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: Five years after the "once-in-a-lifetime" sighting of a walrus in Orkney, a second animal has been spotted there.

Arctic walrus spotted in North Ronaldsay and Sanday