Question

Pls help I can’t let my grade be an F (which it already is)

Answer 1

Answer: I am sorry I can’t help you!

Explanation:

Answer 2

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.