Explanation:

- Khwaja Abdus Samad was a Persian painter who contributed significantly to Mughal art. However, he was more renowned for his miniature paintings rather than bird illustrations.

- Syed Ali Tabrizi was another illustrious Mughal artist whose works mostly focused on portraits and miniatures, not specifically birds.

- Basawan was a notable Mughal painter known for his detailed illustrations of people and historical events but not particularly known for painting birds.

- Mansur, known as Ustad Mansur, earned great fame at Jahangir’s court for his extraordinary skill in painting birds and natural subjects. His detailed works captured the diversity of bird life.

Mansur is the correct answer.