birdwatcher

1. (birdwatching) A person who observes or identifies wild birds in their natural environment.Examples: "Alec Warner was gazing like a bird-watcher at Charmian, who plucked at the rug round her knees, waiting to tell her own story."

2. (slang) A person who enjoys watching rocket launches.Examples: "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."; "[…] particularly those carrying astronauts, are the area's major drawing power, and each "advertised" shoot brings thousands of space age "birdwatchers"."slang