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**EMBARGO: No electronic distribution, Web posting or street sales before TUESDAY 12:01 A.M. ET NOV. 21, 2023. No exceptions for any reasons. EMBARGO set by source.** Madhusudan Katti, left, an ecologist at North Carolina State University, and his Ph.D. student Jin Bai look for birds in East End Park in Durham, N.C., Nov. 2, 2023. While birding in formerly redlined neighborhoods, Bai has documented several surprising species, including a yellow-billed cuckoo, an American redstart and a magnolia warbler. (Cornell Watson/The New York Times/Fotoarena)
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