About Cissa jefferyi Sharpe, 1888
The Bornean green magpie, with the scientific name Cissa jefferyi, is a passerine bird that belongs to the crow family, Corvidae. It is endemic to montane forests on Borneo, a Southeast Asian island. This species was previously classified as a subspecies of the Javan green magpie, under the common name Short-tailed Green Magpie. The Bornean green magpie has a unique feature among all green magpies: it has whitish eyes, while all other green magpie species have dark reddish-brown eyes. This bird lives in thick vegetation in the middle and upper forest storeys, and only flies short distances. It builds an open cup-shaped nest made of sticks in the forest canopy. It produces a rather harsh call, a characteristic that aligns with its classification as a corvid passerine bird.