51860
In northern Ireland , an area of interest because it is devoid of any native vole species , rabbits were again the main prey .
 Ireland, vole
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:
 Ireland, vole