79990
Population declines of 50 % in the Terre Adélie region have been observed due to an increased death rate among adult birds , especially males , during an abnormally prolonged warm period in the late 1970 s , which resulted in reduced sea-ice coverage .
 Terre Adélie
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:
 Terre Adélie