Who invited the dead man?

"Whether handling customer calls at the Yarbrough's Seed, Feed, and Nursery or close calls while solving crimes, sixty-something Southerner MacLaren Yarbrough knows how to charm her way through anything.When a local man is found murdered at her husband's birthday gala, MacLaren sweet-talks clues out of affluent matriarchs, shady drifters, and even a disgruntled parrot to uncover the roots of the crime."