The resident Sandhill Cranes at the Reifel Bird Sanctuary have a good thing going, especially on the weekends when human attendance spikes. Mom and Dad and Young'un flap around, bugling, hunting down clusters of birders.
They seem particularly good at spotting the little brown paper bags of grain that are sold at the entrance, meant to be fed to the milling mobs of mallards.
Once one group's loot has been plundered, off they go, their calls echoing through the marsh. You don't have to look for them. They will find you.