Sucks to have to deal with Marek's.Sorry to hear about your loss! I live in Missouri, the weather has been in the 70s lately but of course you never know. I feed a mix of starter, medicated probiotics, grit, and then some mealworms and black oil sunflower seeds.
Be careful with both the meal wirns and seeds...make sure you only offer a small amount once or twice a week.
Those are treats...think junk food.