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It’s only in the last several years that academic researchers have been leaving the university aeries and flocking to industry.

Peregrine falcons sometimes use high-rise buildings as their aeries; ospreys can occupy man-made platforms to raise their chicks; and committees of vultures sometimes take over dumpsters, said Ms. McDonald, a 62-year-old U.S.

Gazing wistfully over the oligarch aeries south of Central Park, it looks torn, unsure whether to climb back down to earth or fly away forever.

Mountaintop aeries like the Aragats Cosmic Ray Research Station receded in the quest for ultimate knowledge.

As the U.S. population grew, they were reviled as nuisance predators and routinely shot and driven from their treetop aeries by logging, farming and home building.