SECRETARY'S REPORT 107 



This is a domesticated bird that has developed, through painstaking 

 breeding by the Japanese, exceptionally long upper tail coverts. The 

 feathers of these birds are sometimes as much as 20 feet in length. 



Dr. Lawrence Kilham, of the National Institutes of Health, who was 

 spending a year in the vicinity of Entebbe, Uganda, East Africa, 

 kindly sent several shipments of African animals, all of which were 

 well selected and desirable additions to the Zoo. These animals are 

 enumerated in the donors' list. 



Dr. Kobert Eausch, of the National Institutes of Health at the 

 Arctic Health Research Center, Anchorage, Alaska, continued to 

 show his interest in the National Zoological Park. Through his or- 

 ganization there have been received 1 Canada lynx {Lynx canadensis) , 

 1 emperor goose {Philacte canagica)^ and 1 black brant {Branta 

 hernicla nigricans). These were all desirable additions as there were 

 none of these species in the collection at the time, nor had there been 

 for some years. 



The Walter Reed Army Medical Center, the National Institutes of 

 Health, and Johns Hopkins University continued to deposit with the 

 Zoo young chimpanzees {Pan troglodytes) used in their medical ex- 

 periments. These animals are all suitable for exhibition and are 

 available to the medical research workers when needed. This is prov- 

 ing to be a thoroughly satisfactory arrangement, and when the chim- 

 panzees are no longer suitable for the work of the scientists they are 

 turned over to the Zoo permanently. A young female cliimpanzee 

 {Pan troglodytes) was presented by Mr. and Mrs. John T. Smith, Jr., 

 of Monrovia, Liberia. 



The United Cerebral Palsy of Washington, D. C, presented a baby 

 howler monkey {Alouatta)^ three cottontop marmosets {Gallithrix 

 oedi'pus)^ six blue tanagers {Thraupis cana), and four saffron finches 

 {Sicalis luteola) after they had been used for publicity purposes by 

 the organization. 



A domestic burro or donkey {Equus asinus), the first one exliibited 

 in the Zoo in many years, was presented by Del Rensel, president of 

 Slick Airways. Donkeys, of course, are not rare, but by reason of 

 their religious, agricultural, and other associations, and of their odd 

 appearance, they are of considerable interest to the visiting public. 



Through the kind interest of Dr. Juan Rivero, College of Agri- 

 cultm^e, l^Iayagiiez, Puerto Rico, the Zoo received two of the rare 

 Mona Island iguanas ( Gyclura stejnegeri) . These are large, heavy- 

 bodied lizards that look like miniature dinosaurs of past ages. One 

 of these was dead on arrival, and the other refused to eat at first but 

 was finally hand-fed and soon became a pet. Shortly after her ar- 

 rival she laid 16 eggs. 



