twitcher
n.— «Twitchers (also known as birders) spend months before the event scouting out the spots with the most abundant bird life—caged birds and road kill do not count—and their routes are a closely guarded secret.» —“Twitchers’ weekend on the cheep” by Lorna Edwards The Age (Melbourne, Australia) Nov. 7, 2005. (source: Double-Tongued Dictionary)
Further reading
The word filibuster has a long and colorful history, going back to the days when pirates roamed the high seas. Today it refers to hijacking a piece of legislation. Plus, the language of yoga teachers: When doing a guided meditation, you may hear...