A person who observes and studies birds as a hobby.

The activity of observing birds in their natural environment.

पक्षी देखने वाला

English Usage: She is an avid bird watcher, spending hours outside with her binoculars.

Hindi Usage: वह एक उत्साही पक्षी देखने वाली है, जो अपनी दूरबीन के साथ घंटों बाहर बिताती है।

A person who observes something attentively.

पर्यवेक्षक

English Usage: The watcher kept an eye on the nest to see if any chicks would hatch.

Hindi Usage: पर्यवेक्षक ने घोंसले पर नजर रखी कि क्या कोई चूजे निकलेंगे।