birdo
/ˈbəːdəʊ/noun (plural birdos) Australian informal
A birdwatcher: there has been one confirmed sighting by a respected birdo...
- She was born in 1918, worked in army intelligence, and is a birdo.
- A professor at the University of California in Los Angeles, he is a physiologist, a birdo, and now a geographer.
- This Melbourne writer is a true birdo.
Origin
1950s: abbreviation of birdwatcher + -o.