8156
It has been described as a subspecies to its relative the long-billed thrasher , but was considered a separate species when it was determined in a 1998 study that it differed genetically more than five percent from both the long-billed and brown thrasher .
 animal: brown thrasher
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 animal: brown thrasher