Owls can make all kinds of noises, from the stereotypical hoot to hair-raising screams. This website has a page devoted to calls and sounds of owls around the world. Xeno-canto, a site for birdcalls in general, also has a large amount of owl noises for you to listen to. Poke around on these for a little while and you'll have a better idea of what sounds owls can make. My personal favorites owl noises are:
What is TSE? The TSE program provides entry-level workers for your business that you do not have to pay wages for, at 30-40 hours per week for three months. You interview and choose eligible workers referred from the Department of Public Social Services Greater Avenues for Independence (DPSS GAIN) program.
SARE is the U.S. Department of Agriculture's primary means of studying and publicizing sustainable agriculture practices. Through a competitive grants program that works with teams of agencies, organizations, and farmers, more than 3000 (8/23/07) projects have been implemented.