Further-- on predator urine repellents for small mammals. Source
Gary (Sun, 01 Jan 2006 15:47:31 PST)

Happy New Year and good growing.

How do you think they get the coyotes, foxes, and bobcats to urinate
into the little bottles?

With very small funnels. Volunteer funnel holders are always in great
demand; especially if they still have all of their fingers!

Gary in Hilo, HI, looking for snakes to take their picture.