87941
Thus , a species like the silvery pigeon that might exist in considerable numbers and simply be under-recorded or might just as probably be long extinct is not classified as " data deficient " or " extinct " ( which both do not require any protective action to be taken ) , but as " critically endangered " ( the conservation status that confers the need for the strongest protection ) , whereas the increasingly rare , but probably not yet endangered emerald starling is classified as " data deficient " , because there is urgent need for research to clarify its status rather than for conservation action to save it from extinction .
 silvery pigeon
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:
 silvery pigeon