I have a wide range of birds that visit my garden, tits (blue, coal, great), magpies, collared doves, starlings, woodpigeons, blackbirds, house sparrows, and robins - I’ve found that the sparrows and the starlings devour these pellets. I usually add then to a peanut feeder to distract the starlings and also in a smaller feeder for the sparrows and each evening they’re all gone! I’m guessing it’s the combination of insects, berries and also mealworms and the good quality. Highly recommended.