did he hold any doctorate ?
No, as he lived during the Classical period in Ancient Greece.
Aristotle
Aristotle (; "Aristotélēs", ; 384–322 BC) was a Greek philosopher and polymath during the Classical period in Ancient Greece. 
in the modern classification system birds are in a separate UNANSWERABLE what is taxonomy ? In biology, taxonomyis the scientific study of naming, defining (circumscribing) and classifying groups of biological organisms based on shared characteristics. who developed it ? Carl Linnaeus. what are its applications ? The work conducted by taxonomists is essential for the study of biodiversity and the resulting field of conservation biology. how was it used during ancient times ? Organisms were first classified by Aristotle  during his stay on the Island of Lesbos. He classified beings by their parts, or in modern terms "attributes", such as having live birth, having four legs, laying eggs, having blood, or being warm-bodied. where was the above person born ? City of Stagira.
wiki:1545425
Aristotle [SEP] Introduction
Little is known about his life. Aristotle was born in the city of Stagira in Northern Greece. His father, Nicomachus, died when Aristotle was a child, and he was brought up by a guardian. At seventeen or eighteen years of age he joined Plato's Academy in Athens and remained there until the age of thirty-seven (c. 347 BC). Shortly after Plato died, Aristotle left Athens and, at the request of Philip II of Macedon, tutored Alexander the Great beginning in 343 BC. He established a library in the Lyceum which helped him to produce many of his hundreds of books on papyrus scrolls.