text: Blue Jays have strong black bills used for cracking nuts and acorns , and for eating corn , grains and seeds , although they also eat insects such as beetles , grasshoppers , and caterpillars .
simplified: Blue Jays have strong black bills used for cracking open nuts , and acorns and for eating corn , grains and seeds , although they also eat insects such as beetles , grasshoppers , and caterpillars .