Specifically designed for Robins, SQUAWK Robin & Songbird Mix can also be fed as an all year round, high energy feed for all birds. It includes pinhead oatmeal because this provides high energy plus essential high carb - it is chopped to a pinhead size for all small and slender beaked birds. Sunflower hearts are from the black oil sunflower so have the highest available energy values of all the sunflower varieties. Gammarus is a small dried shrimp which offers high protein values similar to mealworms which also have high fat and good insectivorous protein. Peanut granules are very fine grade pieces of peanut including the nib, which is the part of the peanut containing the highest levels of nutrients. It is critical that whole peanuts don't get into this blend which would put the smaller birds and fledglings at risk (whole peanuts shouldn't be fed from a table or tubular feeder). We sieve all chopped peanuts before they are added to make sure that whole peanuts aren't included.