51865
Other assorted avian prey has included a few species of waterfowl , most available pigeons and doves , cuckoos , swifts , grebes , rails , nearly 20 assorted shorebirds , tubenoses , hoopoes , bee-eaters and several types of woodpecker .
 waterfowl, cuckoos, shorebirds, tubenoses, bee-eaters, woodpecker
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:
 waterfowl, cuckoos, shorebirds, tubenoses, bee-eaters, woodpecker