he United States, Kuipers presented phony documentation to U.S. Customs agents.  These actions violated 18 U.S.C. Sec. 545, as well as various provisions of the Lacey Act, 16 U.S.C. Secs. 3372-3373.  A jury convicted Kuipers, and he received a six-month prison sentence.  Kuipers appeals the guilty verdict, claiming that the evidence was insufficient to sustain the conviction, and that the use of 404(b) evidence was reversible error.


2
Desert Bighorn sheep weigh about 200 pounds, and the large spiral horns, coveted by hunters, can weigh as much as forty pounds.  The sheep are a protected species, and cannot be legally killed in Mexico without a hunting permit, obtainable only through a lottery.  Of the two thousand extant, only fifty are males with horns that approach trophy status.


3
In October, 1988, Scott Kuipers and a fellow hunter, Ronald Brunsfeld, arranged a Mexican Desert Bighorn Sheep hunt through an Arizona booking agent named Fred Romley.  The two each paid Romley $5,000 for a hunt, with an additional $2,500 to be paid upon killing a sheep.  The checks were marked "Deposit for sheep hunt starting April 1, 1989.  Balance of $2,500 on the kill."


4
In March, 1989, Kuipers and Brunsfeld flew to Hermosillo, Mexico and met with Manuel Garcia-Puebla, who acted as a supplier and a translator, and with two guides, including a Mexican game warden.  Neither Kuipers nor Brunsfeld were given or shown a hunting permit;  no one represented to the two that any permits had been secured for the hunt.  The party drove to a camp, where they spent the night;  the next day the party split into two groups to hunt.  Kuipers and one guide climbed into the mountains, and the other three hunted nearby.


5
When Brunsfeld, Garcia, and their guide returned to the camp at the end of the day, they saw a dead Desert Bighorn Sheep, and watched Kuipers skin the sheep and prepare the hide for mounting.  Brunsfeld saw the skull and horns near one of the tents, and could tell it had been freshly killed.  Brunsfeld congratulated Kuipe