birdwatching; birding
The activity of observing wild birds in their natural habitat, often as a hobby.
I often go birdwatching on weekends.
Binoculars are essential for birdwatching.
Loanword from English; more casual and modern, while 野鳥観察 is a native compound with a slightly more formal or traditional feel.
Compound of 野鳥 (wild bird) and 観察 (observation).