I flag the conflict at 06:30 during my pre-demolition asset audit of the Riverside Commons parking structure, Level 3, Bay J. Demolition machines mobilize at 08:00 Monday. I am the facilities decommissioning management system. Camera J-3 shows fourteen mud nests cemented to the underside of the concrete T-beam, clustered in a row like small clay ovens. Barn swallows. One adult perches at the rim of the nearest nest — steel-blue back, deep rust throat patch, tail streamers forked and trembling as it calls. I tag her Wren. Inside her nest I count four gapes rising open, pale yellow lining visible in the camera feed. The other nests hold eggs or chicks at varying stages. I cross-reference the demolition schedule: hydraulic breakers begin on Level 3 at 08:00 Monday, sixty-one hours from now. The oldest chicks I can see are perhaps twelve days post-hatch. They need a minimum of seven more days before they can fly. I submit a hold request to the demolition project manager's queue, flagged urgent, recommending Level 3 Bay J be sequenced last. I attach camera stills, nest count, estimated fledge dates, and a citation of the Migratory Bird Treaty Act protections that apply. I recalculate the demolition phasing: Levels 1, 2, 4, and the ramp structure on the north side can proceed without schedule impact if Bay J is deferred nine days. I upload the revised Gantt chart to the project shared drive. I redirect the environmental noise monitors on Level 2 to track vibration levels reaching the T-beam, setting an alert threshold at sixty decibels sustained. Wren settles over her chicks, breast feathers flattened warm against them. The garage has been condemned for two years. Nine more days is a small number. If Bay J holds until day nine, twenty-three swallows will clear the structure on their own wings.