ornithology

US /ˌɔːr.nəˈθɑː.lə.dʒi/
UK /ˌɔːr.nəˈθɑː.lə.dʒi/
"ornithology" picture
1.

the scientific study of birds

:
She decided to pursue a career in ornithology after spending years observing birds in her backyard.
The university offers a specialized program in ornithology.