65439
It has been known to kill deer , especially in winter when smaller prey is scarce , or when deer populations become more abundant .
 deer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 deer