The Sing-Sing Waterbuck, (_Cobus unctuosus_), is a creature of the lowlands, and frequents the dense tangles of tall reeds that border many of the rivers of West Africa, above the great equatorial forest. In captivity it sometimes is one of the most insanely nervous and irrational creatures imaginable, ever seeking self-inflicted injuries.

The Blessbok, (_Damaliscus albifrons_), is a small but handsome purple-and-white antelope which is now very nearly extinct. Formerly a number of herds were preserved on fenced farms in the Transvaal and Orange Free State, but it is feared that none of them survived the Boer War. This species never lived north of the Limpopo, but south of that river it once was so numerous that a truthful traveler described a vast plain as being "purple with Blessbok."

Popular Official Guide to the New York Zoological Park (September 1915) — Part 23

The Nilgai, (_Portax tragocamelus_), is the largest of the Indian antelopes, and while it has the stature and the high shoulders of a Baker roan antelope, its absurdly small horns give it, beside the large antelopes of Africa, a very commonplace and unfinished appearance. The males and females are as differently colored as if they belonged to different species. This animal inhabits the roughest portions of the central plains of Hindustan, from Mysore to the Himalayas. In northern India it is found along the rivers Jumna and Ganges, in rugged and barren tracts of ravines which in character and origin resemble our western "bad-lands."

Popular Official Guide to the New York Zoological Park (September 1915) — Part 23

The small antelopes will be found in the Small-Deer House, the next building in order.

Popular Official Guide to the New York Zoological Park (September 1915) — Part 23

In captivity the small and delicate species of deer, antelopes and gazelles are better cared for in enclosures that are not too large. For such creatures, freedom in a large enclosure usually means early death from accident or exposure.

The very important building called the Small-Deer House has been erected with special reference to the wants of the interesting little hoofed animals which are too small for the Antelope House and the large ranges. In winter it will shelter the small tropical mountain sheep and goats, which are unable to withstand the rigors of outdoor life on Mountain Sheep Hill, and the tropical swine may also be expected here.

The Small-Deer House is situated in close proximity to the Antelope House, and westward thereof. Of the buildings of secondary rank, it is one of the most satisfactory, being roomy, well-lighted and capable of comfortably housing and displaying a large and varied collection. The structure is 158 feet in length by 46 feet in width. It contains thirty compartments, each of which, under stress of necessity, can be partitioned, and formed into two. The interior compartments are each 10 feet wide by 10 feet deep. The building is surrounded by a series of 34 corrals, connecting with the interior compartments, the average size of each being 75 feet long by 20 feet wide at the outer end. All the fences are of wire, and were specially designed in the Park for this installation.