Veteran backyard birders know that if you want to please a Baltimore Oriole, you better have grape jelly. It was news to me this spring when I was wondering why I see a huge variety of birds in my yard but rarely an oriole. Well, now I know that you need to have an orange colored feeder, you need to hang real oranges on it, and, that’s right, you gotta have grape jelly. I guess the peanut butter is optional. Anyway, it worked like a charm. I have also learned that you better have plenty of grape jelly because they go through a ton of it. However, today I discovered something that I bet not all veteran birders know. Grey Catbirds also love grape jelly. I witnessed a major “cat” fight between an oriole and a catbird - like two first graders fighting over a jelly sandwich.