Experiment in feeding wild birds.

I usually mix these 4 foods and put them out on the bird table. I've decided to do an experiment to see which most favoured. I already know the live mealworms are eaten first. I put 5 grams of food in each pot. I put the food under an upturned hanging basket to protect it from pigeons.  The foods are mealworms, suet pellets, sunflower hearts and crushed oats. The numbers are the weight of the empty dishes.