Maybe turds from an even bigger cat might scare them off. At Disney we saw a Bengal Tiger turd about the size of a Louisville Slugger. Maybe you could talk them out of it.
lieu, you have this distressing quality. You seem to believe that various forms of feces are the cause of, and the cure for, all of Life’s problems.
Despite my prior demi-rant, I wanna hear a tapre recording of any such discussion.
Presumably it’s a nonstandard pluralization of “Lotus.”
Urinate around the pound.
Play music / raido near the pond.
Mothballs.
Dog.
Seems reasonable to me.
sings
Bobcats pooping in the pond, doo-dah, doo-dah!
I hear Loudon Wainwright III:
You got yer bob-cat
Poopin’ in the pond,
Bob-cat
Poopin’ in the pond,
Bob-cat
Poopin’ in the pond,
Stinkin’ to high Heaven!
I think he’s onto something – although you might want to try leaving one of your own out there first, on the off chance it may work. Exactly how you might accomplish this I’ll leave up to you (if there’s no clear lines of sight from neighbors you could probably just make a “direct deposit,” but if you don’t have that privacy, you might have to figure something else out).
Start eating extra fiber and let us know how this plays out!
Thanks for the excellent advice, but my wife already suggested I pee out there from now on. I also contacted
a local sports store to see if they had anything. They said no, but suggested using bear or mountain lion urine.
Anybody know where I can get a 55 gal. drum of bear piss?
The largest amount I could find (scroll down page) is $40.00 per gallon. So if you could find a 55 gallon drum of it, it might cost you at least $2,200.
How one acquires 55 gallons of bear urine in the wild is probably best left to the imagination.
Apologies to Mel? He’s dead; what good is that going to do him?
I kinda feel like the rest of us could do with an apology for that, though…
First, you determine where the fratboy bears like to hang out. Then you leave a fiberglass outhouse with several kegs of beer nearby.
Come back several days later, and you’ll find the beer consumed, the outhouse door broken, numerous salacious comments about female bears written on the outhouse walls, and a whole lotta bear whiz. 
This webpage about feral cats suggests providing alternate, more desirable potty facilities. They suggest a pile of soft soil or sand, mulch, etc.
If it was me, I’d just focus on revamping my pond’s ecology in order to accommodate the increased nutrient load. Personally I think that having bobcats peering in through my patio door would be of a degree of coolness to compensate me for having to rethink my entire pond strategy, but YMMV. 
If you have enough green plants growing, they ought to be able to suck up enough nutrients so the algae doesn’t get started.
I intend to, now that I have found the original lyrics. Give me a little time. Yes, Mel Torme is dead, so maybe I should apologize to his heirs. That one song probably put them through college. It’s a wonderful song, but it does cry out for doggerel about bobcats. 
Catterel, maybe. In my voice, it’s caterwauling. :dubious:
Variation on a theme by Mel Torme
by Oliver Faltz, Dec. 12, 2006
Bobcats pooping on an open fire,
Bobcats peeing up your nose,
Yulecats gaily flinging dung at a choir,
And cats who poop like Eskimos.
Every bobcat knows a short tail and some furry toes,
Help to keep them warm at night.
Little cats trying hard just to grow,
Will hope they get some prey tonight.
They know that Mama’s on the prowl,
She’s finding rats and mice and bunnies to slay.
And all the bobkittens are gonna yowl,
When they see reindeer poop falling in the bay.
And so we’re cleaning up our spotted fur,
After milk, of which we are so fond.
While you’re busy thinking over this song,
We’re all pooping in your pond!
Thanks, very interesting, but, uh, this is Arizona. The whole place is a vast sand box…
The multiplicity of song references triggered by the title is enormously amusing, not least because I came into the thread to post: “Consider yourself lucky, you could have alligator lizards in the air.”
Well, yeah, I realize that, but ya still gotta dig that hole, doncha? And then cover it up afterwards? And pooping in the pond eliminates (heh) that, thus being more efficient in the long run. Kitty’s just being efficient and time-saving, see. Middle managers should take note.
So, guess it’s time to explore Integrated Pond Management, huh?
I’m hearing Tom Lehrer, to the tune of “Poisoning Pigeons in the Park.”
I’m glad I wasn’t the only one to immediately take this to its logical conclusion, The Scrivener.
Here’s a bit of woodsmanship my grandfather taught me: Bobcats sometimes mark their territory by raking together a pile of leaves about 2 ft. in diameter and about 6 in. high (that describes the pile we found in the woods surrounded by bobcat tracks) and then urinating in the center of the pile.
So, maybe an approach more sophisticated than just urinating around the pond is called for. First you rake up some leaves, then piss on them.
Of course, a pile of leaves in Arizona might be a problem.