‘Hoot-dash display’ brings the chicks in. Duke Research Blog, December 14, 2012. Deep in the scrublands of Keoladeo National Park in northwest India, one thing was hard for biologist Jessica Yorzinski to ignore: It wasn’t the heat. It wasn’t the jackals. It was the squawks of peacocks in the throes of passion. Picked up by RedOrbit and Discover Magazine.