54 THE NATIONAL PARK SERVICE 



in the Yellowstone for winter feeding, the work being done 

 on contract. Efforts are also made to keep the animals free 

 from disease, cooperation being had with the Bureau of Ani- 

 mal Industry of the Agricultural Department for this purpose. 

 An expert of this bureau vaccinates the tame buffalo herd of 

 the Yellowstone each year. Close cooperation in the matter 

 of game protection is maintained with the Bureau of Biologi- 

 cal Survey, which maintains game preserves in Wind Cave and 

 SuUys Hill parks, as well as in the Jacksons Hole country 

 south of the Yellowstone. By virtue of an appropriation in 

 the act of March 4, 1921 (41 Stat. L., 1407), the Service's 

 ajjtivities in game^protection have been extended to Mt. Mc- 

 Kinley Park in Alaska. A minor activity of the Service in 

 connection with wild life conservation is the distribution each 

 year, particularly from the Yellowstone, of surplus animals 

 from the elk, buffalo, and antelope herds. These animals are 

 distributed either to other parks and monuments or to states 

 and municipaUties for placing in the local parks and zoological 

 gardens. 



All of the parks are bird refuges, and birds are protected 

 from hunters and predatory animals while in the parks just 

 as are the game herds. Many migratory birds find the parks 

 safe stopping places each year on their passages back and forth 

 between their breeding places in the north and their winter 

 homes in the south. 



Fishing with hook and line is permitted in the parks under 

 regulations enforced by the park authorities, which regula- 

 tions may be suspended by the Superintendent at any time 

 and fishing absolutely prohibited in certain waters if in his 

 judgment such action is advisable. The daily catch is lim- 

 ited, and a limit is also placed on the smallness of the fish 

 to be taken. Cooperation is maintained with the Bureau of 

 Fisheries, which maintains three hatcheries in Yellowstone 

 Park and one in Glacier. There is also a state fish hatchery 

 in Rocky Mountain Park; and a state hatchery which Cali- 

 fornia has hitherto maintained in the Yosemite may be taken 



