Birdola Stackers use a natural protein binder to hold the cakes together. Unlike cakes that use honey as a binder (attracting unwanted bees and disintegrating in the rain), Birdola stackers hold up well and have greater peck-ability. Small songbirds are able to grab seeds quickly while on the alert for predators. Stackers are just soft enough to enable birds to feed before their internal "alarm" goes off and they flee the feeder.
These seed cakes fit the Stack'Ems Feeder , which offers a protective roof to protect the cakes.
Cakes measure approximately 3.5" dia x 1.5"-1.75" high.
Please click on "More Information" for seed cake ingredients and guaranteed analysis.