I belong to a Facebook Group called “Birds of Texas” because I visit Texas often (last year I visited Texas three times not counting my storm chasing adventure) and photograph birds while I’m there. To post a photograph on the group’s page, the photograph must have been taken in Texas. I usually post there once or twice when I’m there. Last week I posted this photograph of a grackle with a coquina in its beak on the beach at Port Aransas. I called it a Boat-tailed Grackle. I was corrected by a member of the group. It is a Great-tailed Grackle. I learned the difference is the length of the tail and the shape of the head. The Great-tailed Grackle’s head is flatter than the Boat-tailed Grackle’s. I also learned from comments on my photograph that to find grackles on the beach in that area is very rare so what I witnessed was, as I suspected, an unusual occurrence. The person who corrected me apparently resides in the area and drove to the beach to see for himself what I had documented. I don’t know if the grackles’ fondness for coquinas is also unusual but I find the behavior fascinating.