serin (noun)

1. During the 18th century, the naturalist Carl Linnaeus first classified the serin bird species.

2. In the wildlife documentary, 'Birds of Europe', the serin is featured as one of the prominent bird species.

3. In the animated series 'Bird Adventures', the main character befriends a serin bird who helps them on their journey.

4. According to Greek mythology, the serin bird is believed to be a symbol of happiness and prosperity.