Chunks of walls and flooring crash in mangled heaps as an enormous orange crane smashes apart the science building. Fueled in part by energy funds, Trinity University is updating its campus. Several hundred feet away, purple martins swoop down to feed squawking chicks nestled in white plastic gourds dangling from an angular metallic pole. In the university's community garden, ripe tomatoes are going to waste. Beyond the demolition site, a grackle lands on the neatly mown grass, where he puffs up and struts while other grackles watch him.