The Joshua Peanut Butter Bar is packed with energy-rich ingredients that your birds will love. Being high in calories, provide these to help your garden birds get through cold long nights, prepare for the breeding season or raise their young. The Joshua Peanut Butter Bar has a hole running down the length of the interior (of approximately 1.5 cm in diameter) so that you can easily attach it in the specially designed Joshua Peanut Butter Bar Feeder (product code: 37028).