birdwatcher

Etymology

bird + watcher

noun

1. (birdwatching) A person who observes or identifies wild birds in their natural environment.
   Alec Warner was gazing like a bird-watcher at Charmian, who plucked at the rug round her knees, waiting to tell her own story. 1959, Muriel Spark, chapter 5, in Memento Mori, London: Macmillan
2. (slang) A person who enjoys watching rocket launches.
   In fact, on this night, the birdwatching is over for everyone, for the firing is cancelled. Nobody notifies birdwatchers officially, of course, so the exodus is scattered and gradual. 1957, Skyline, volumes 15-18, page 7
   […] particularly those carrying astronauts, are the area's major drawing power, and each "advertised" shoot brings thousands of space age "birdwatchers". 1961, Canadian Motorist, page 15