Wildlife biologist Chuck Rizzo climbs into what looks like an enormous white bucket and slowly begins to rise. The metal arm of an aerial lift truck propels him higher and higher, above thick underbrush and then even some treetops, toward a striking sight in an otherwise ordinary Cook County, Illinois, forest preserve: a sturdy, stick-strewn platform built on top of a 50-foot telephone pole. “How is it?” the lift operator yells as he maneuvers the bucket carrying the wildlife biologist. “Want it over?” “Yeah, get it closer,” Rizzo says. Then he reaches toward the sticks and lifts out two pudgy…