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It previously included the Natterer 's slaty antshrike , Bolivian slaty antshrike , Planalto slaty antshrike and Sooretama slaty antshrike as subspecies , in which case the combined species simply was referred to as the slaty antshrike .
 Natterer 's slaty antshrike, Bolivian slaty antshrike, Planalto slaty antshrike, Sooretama slaty antshrike
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:
 Natterer 's slaty antshrike, Bolivian slaty antshrike, Planalto slaty antshrike, Sooretama slaty antshrike