twitcher

/ ˈtwɪtʃə /

noun

1. a person or thing that twitches
2. informal.
   a bird-watcher who tries to spot as many rare varieties as possible

Example Sentences

One twitcher who made an early morning journey from London described catching a glimpse of the creature as "exhilarating".

From BBC

The temporary twitcher had been walking his dog when he spotted the crowds and decided to join them, declaring that he would be "chuffed to bits" to see the American visitor.

From BBC

Twitcher George Shannon said his "heart pounded" and he "couldn't believe it" when he saw it swoop past.

From BBC

I am not a twitcher’s binocular strap, but I adore birds.

From The Guardian

On the journey home, Geoff, the grandfather of my partner, Matthew, and the chief twitcher in the family, advised: “Don’t ever come back. . . . You will never have a day as good as this again.”

From Washington Post