12 BUREAU OF BIOLOGICAL SURVEY. S. R. A., B. S, 48 
known ornithologists that the applicant is a fit person to be intrusted with a 
permit. 
The permit may limit the number and species of birds, birds' nests or eggs 
that may be collected thereunder and may authorize the holder thereof to 
possess, buy, sell, exchange, and transport in any manner and at any time 
migratory birds, parts thereof, and their nests and eggs for scientific purposes : 
or it may limit the holder to one or more of these privileges. Public museums, 
zoological parks and societies, and public scientific and educational institu- 
tions may possess, buy, sell, exchange, and transport in any manner and at 
any time migratory birds and parts thereof, and their nests and egg* un- 
scientific purposes without a permit, but no specimens shall be taken without 
a permit. The plumage and skins of migratory game birds legally taken may 
be possessed and transported by a person without a permit. 
A taxidermist when authorized by a permit issued by the Secretary may 
possess, buy, sell, exchange, and transport in any manner and at any time 
migratory birds and parts thereof legally taken, or he may be limited to one or 
more of these privileges. 
Each permit shall expire on the thirty-first day of December succeeding its 
issuance unless otherwise specified therein, shall not be transferable, and shall 
be revocable at the discretion of the Secretary. A person holding a permit 
shall report to the Secretary on or before January 10 following its expiration 
the number of skins, nests, or eggs of each species collected, bought, sold. 
exchanged, or transported. 
Every package in which migratory birds or their nests or eggs are trans- 
ported shall have clearly and conspicuously marked on the outside thereof the 
name and address of the sender, the number of the permit in every case when a 
permit is required, the name and address of the consignee, a statement that it 
contains specimens of birds, their nests, or eggs for scientific purposes, and, 
whenever such a package is transported or offered for transportation from the 
Dominion of Canada into the United States or from the United States into the 
Dominion of Canada, an accurate statement of the contents. 
[As amended October 25, 1918, and March 3, 1921.] 
REGULATION 10.— PERMITS TO KILL MIGRATORY BIRDS INJURIOUS TO PROPERTY. 
When information is furnished the Secretary that any species of migratory 
bird has become, under extraordinary conditions, seriously injurious to agri- 
culture or other interests in any particular community, an investigation will 
be made to determine the nature and extent of the injury, whether the birds 
alleged to be doing the damage should be killed, and, if so, during what times 
and by what means. Upon his determination an appropriate order will be made. 
REGULATION 11.— STATE LAWS FOR THE PROTECTION OF MIGRATORY BIRDS. 
Nothing in these regulations shall be construed to permit the taking, posses- 
sion, sale, purchase, or transportation of migratory birds, their nests, and 
contrary to the laws and regulations of any State, Territory, or District made 
for the purpose of giving further protection to migratory birds, their nests, and 
eggs when such laws and regulations are not inconsistent with the convention 
between Hie United States and Great Britain for the protection of migratory 
birds concluded August 16, 1916, or the migratory bird treaty act and do not 
extend the open seasons for such birds beyond the dates prescribed by these 
regulations. 
[Added by proclamation <>f October 25, mis. as amended July 9, 1920.] 
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