Birds that were once rare in New York City have been making more frequent appearances in recent years, to the thrill of local bird-watchers. Birders have also noticed a reduction in the number of birds passing through New York City, said Marshall Iliff, the project leader for the Cornell Lab of Ornithology’s eBird project. Many birders love to watch warblers on their southward migration in mid-August, but Mr. Iliff noted that the wildfires in Canada caused many birds to leave earlier than expected. “It’s those kind of things that sort of raise the question of whether birds are going to be able to adapt to these changing environments,” Mr. Iliff said. He said that as the forests dry out and as fires increase, birds that are expected to be seen passing through Central Park in spring could become “these really rare, rare events.”

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Persons: ”, Heather Wolf, Marshall Iliff, Iliff, “, Mr Organizations: Cornell, of Ornithology Locations: New York City, Canada, Central