Iggy refilled the bird feeders and spilled seed on the patio yesterday. The sparrows discovered it the same day. The grackles didn’t find it until today.

About fifty grackles swarmed over the patio and nearby lawn when I looked out my bedroom window a few minutes ago. They seem to have driven out the sparrows by virtue of their larger size.

Despite their size, grackles are as people-shy as sparrows. They scatter when I merely glance through the window in my back door.