"Something isn't right here," the woman said with a perplexed look on her face. Our group was birding Greenlawn Cemetery, and we'd just looked through an apparent group of Grackles. Most of us had already moved on, but she looked back at the Grackles, a few of which had dropped to the ground and were tussling with leaves and tree debris. "They don't sound like Grackles," she intoned. As it turned out, we had almost been fooled by the Midwest's stealthiest winter resident, the Rusty Blackbird. Her initial comment was also prophetic about the species as well.