A feed mix for birds, comprising at least one of seeds, nuts and berries, the mix having: an aggregate protein content in the range of 14% to 30% by dry weight; an aggregate fat content in the range of 15% to 51% by dry weight; an aggregate content of palmitic acid in the range of 1% to 30% by dry weight; an aggregate content of stearic acid in the range of 1. A hole through the stack of layers may then be created using the conductive source layer as a stop-etch layer. The bracket defines a pivot hole for rotatably receiving the post of the shaft. The locking element is movable between a locking position where the product is prevented from being removed from the housing, and an open position toward which the locking element is biased to allow the product to be moved into and from the housing through the opening. The number of facets is equal to or greater than 75 and preferably is 100.