H.R.3829: To amend title 18, United States Code, to prohibit certain interstate conduct relating to exotic animals.

Sportsmanship in Hunting Act of 2007 - 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 for the collection of a trophy. Defines "confined exotic animal" as a mammal of a species not indigenous to the United States that has been held in captivity for the majority of its life or a period of one year.