If you are finding clumps, it could mean that damp has got into your feeder or bag of seed, from condensation. We recommend storing bird food sealed up and in a cool, dry place such as a shed or garage. We've sent you a replacement bag to make up for any of the mix you are unable to use.
“This mix has transformed the birds that come to our garden. It is like the birds have given us an amazing Trip Advisor review and suddenly we are inundated with Goldfinch, Greenfinch, Sparrows, Blue Tits, Robins ..”