There is always a possibility that birds can feed on Pennington Smart Seed Fescue / Bluegrass Mix or any other grass seeds. There are things that you can do around the property to deter them from eating the newly laid seed, such as using bird deterrents, keeping bird feeders stocked with their favorite foods, and laying mulch or straw down until roots are established.
Pennington Smart Seed Fescue / Bluegrass Mix contains a blend of Fescue grasses and Kentucky Bluegrass.