50413
Many bird populations are declining worldwide , with 1,227 species listed as threatened by BirdLife International and the IUCN in 2009 .
 BirdLife International, IUCN
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 BirdLife International, IUCN