The Greater Bird-of-Paradise (Paradisaea apoda) is a bird that performs a courtship display (lekking) to attract females during the mating season. The objective of this study was to examine the display behavior of adult and sub-adult males on lek trees as a learning process by a sub-adult and identify the lek trees. The research was conducted in the Tunas Timber Lestari Ltd. https://milktoothes.shop/product-category/toys/