This bird seed mix includes a range of nutritious treats including kibbled sunflower hearts, kibbled peanuts and black sunflower hearts, which makes it an attractive food choice for many species of birds that feed on tables, trays or on the ground. The mix also includes added calcium grit to help with egg production during the breeding season. This mix is identical to our existing cj table bird seed mix but has the new additional bag sizes as part of our collaboration with the national trust, for the love of nature. These bags are also designed with stunning national trust branding which complement the feeders in the national trust range. We recommend only to feed this particular seed mix on bird tables. The items in the national trust garden wildlife range have all been selected based on several key criteria including material quality, attractive design and sustainability, ensuring long term benefit to the wildlife that use them. Every purchase from the national trust garden wildlife