Sportsmanship in Hunting Act of 2005

Sportsmanship in Hunting Act of 2005 - Amends the Federal criminal code to prohibit knowingly transferring, transporting, or possessing a confined exotic animal for purposes of allowing the killing or injuring of that animal for entertainment or the collection of a trophy. Provides that such prohibition shall not apply to the killing or injuring of an exotic animal in a State or Federal natural area reserve undertaking habitat restoration.

Permits any person authorized by the Secretary of the Interior, acting through the Director of the United States Fish and Wildlife Service, to: (1) arrest without warrant any person who violates this Act in the presence or view of the arresting person; (2) execute any warrant or other process issued by an officer or court of competent jurisdiction to enforce this Act; and (3) with a search warrant, search for and seize any animal taken in violation of this Act.

Declares that any animal seized shall be held by the Secretary of the Interior or a U.S. marshal and, upon a defendant's conviction, be forfeited to the United States and disposed of by the Secretary.

Permits the Director to use by agreement the personnel and services of any other Federal or State agency to enforce this Act.