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.
Still need a answer it the post is 3 days old
Barrages and Dams were built to manage the Euphrates river. I hope this answer helps.
ANSWER!
Enlightenment philosophy and Great Awakening Christianity were very different, but both influenced the American colonies and American Revolution and both frame our thinking today. The Enlightenment — so named by its own practitioners, who didn’t lack self-esteem — is best thought of as a continuation of the Renaissance we read about in Chapter 2, with a strong emphasis on the Scientific Revolution, reason, and progress. Its practitioners adhered to the scientific method of testing hypotheses through rigorous, repeatable experimentation. Ancient Greeks, inventors of the first organized sporting events (the Olympics), also promoted hard-nosed, constructive debate and organized competition in law, politics, philosophy, and science.
Control that should be it
