Odd as it may seem, I enjoy them. Yes, I find it mildly irritating to have to clean grackle spackle off the rocks around the pond. But I've found a well placed rubber snake is effective crowd control.
Years ago, I was the chef at a downtown hotel. One day I realized I had been hearing an odd noise repeating for some time and went to investigate. A female grackle was standing at the glass entry door of the restaurant screeching for attention and occasionally pecking the glass. I gently opened the door and talked to her. She cocked her head sideways but stood her ground. I could see that she had some type of tumor or growth on the side of her head, but she didn't appear ill. Wanting to be a good host, I did what chefs do - I went inside and found food and drink to offer her (a lid from a jar filled with water, some crushed sunflower seeds, and some chopped up bacon. I mean, really, we weren't exactly prepared for this particular guest.) By this time, the staff and customers were all watching, but she ate and drank as if she'd ordered from the menu. When she was through, she flew off.
Grack returned every day, and we all began to watch for her. We learned that she would approach other adult grackles then flutter and beg like a baby bird. The other adults would then feed her.
As time went on, she seemed to become a bit unsteady but still showed up for her meals. One day, the entire staff of the restaurant watched as she flew up to the door but could not stand or remain upright. All of us, and I mean all of us, were crying when she died.
What a gift that goofy bird was ...