Answer: There is pollution in the east river
Explanation: If we think about it cant be a lack of food as it talks about having a large food source. Nor can it be climate change as that would result in a low yellow Perch population. it cant be they aren't able to catch the bird. So the only logical answer is a pollution that the birds are adapted to.
B? I am not sure
I think this is what it is
political parties seek to please and deceive the people
shmoop
The highest in the caste system are the Brahmins.