98 NEW YORK ZOOLOGICAL SOCIETY 



$7,700, and the new dens were located against a ledge of rock 

 facing the original series. These dens were erected and com- 

 pleted to the satisfaction of the Society in December, 1911, and 

 will be occupied early in the spring of 1912. 



Eagle and Vulture Aviary. — On February 15, 1911, a con- 

 tract for an extensive and thoroughly modern aviary, suitable 

 for eagles and vultures, was awarded to George Hildebrand, in 

 the sum of $18,867. Work began on February 15, 1911, and was 

 very nearly completed by the end of the year. The new aviai;y, 

 which will be fully described in subsequent publications, contains 

 seven very large cages, and six smaller ones — all carefullj^ 

 designed to serve to the best purpose the various species that 

 they are to contain. This fine improvement adds a feature of 

 great interest to Bird Valley, and greatly strengthens the series 

 of installations for the exhibition of birds. 



Zebra House. — In the spring of 1911, a contract for the con- 

 struction of a spacious and thoroughly modern Zebra House, in 

 keeping with the other animal buildings of the Zoological Park, 

 was awarded to Joseph Balaban, in the sum of $25,181, and the 

 work of construction began immediately. The yards were not 

 included in the contract, for the reason that at the time the 

 contract for the building was made, a fund for the construction 

 of the 5'ards had not been appropriated by the city. Later on, 

 an appropriation for the construction of the yards, and the walks 

 around them, was secured, and this work will be undertaken very 

 early in the spring of 1912. At the latest, the Zebra House and 

 adjacent yards should be ready for occupancy by July 1, 1912. 



Respectfully submitted, 



\Mlliam T. Hornaday, 



Dii-ector. 



