They are emptying the sunflower hearts in a day, suet balls aren't being touched. So popular the pigeons and doves are trying to get at them as well!
Revise that, just had to refill the feeder! Getting a great variety of birds that obviously weren't interested in the suet balls. Had been buying 1 kilo bags of sunflower hearts in the local Tesco but just order a 20 kilo bag online, works out at almost half the price. Need to try to get some pics, various t1ts, goldfinches, chaffies, siskins not to mention optimistic doves and pigeons. The dogs don't like the pigeons and doves, if they hear the wings flapping they're out to investigate.
Mentioning woodpeckers, next door has a feeder with suet balls which a woodpecker frequently visits. Why get a headache banging your head off a tree when there's easier food around.