Answer:
Reporter - 1
i. often
Dr - 1
ii. likely to cause death
Dr - 3
i. having the habit of migration
Dr - 4
ii. pulling the feathers of
Dr. - 4
ii. solid waste matter of birds
Reporter - 6
i. disease that spreads over a whole area
Note that all words are used in context of this text. Words plucking and droppings don't necessarily relate to birds but, used in this context, they do.