yup yup yup yup. lol. i think that's the wolf he means. always whistles the same tune, in several shorts- one with a lamb/sheep, one with the three little pigs, always gives off a "hobo" vibe (to me anyway). i LOVE that wolf!
I don't think that is him (the one on the Avery sites). One other characteristic I forgot to mention is he always walked with a slouch and I remember that as he walked he always had his hands (paws) in his pockets.
My friends and I quote this wolf and whistle his tune all the time. He was hilarious! The tune he whistles is the Union fight song I think...as "Dixie" would be the confederate fight song. I think this because, in a Clint Eastwood western, where the Union came and killed Clint's family and burned down his house, they were playing the same tune.
The wolf had a couple of cartoons that I miss. The Billy Boy one, and another that was a takeoff of the Three Little Pigs...where he wore a cat puppet and said, "Meow! Meow, man!", and, "That's a mean dog, Man."
If anyone knows where I could get a copy of these cartoons please send a link.
Most of us here call that character the southern wolf. It's one of my favorite characters voiced by Daws Butler. Mostly confused with Tex Avery's other city wolf character known as the "slick wolf". The Boomerang channel plays the southern wolf cartoon quite a bit these days. He mostly appears inbetween half-hour schedules. Click here for the Boomerang Schedule. Look after shows like Pebbles and Bam-Bam, there you'll see some MGM cartoons airing. Here's a few pics of the Southern Wolf in all four of his cartoons that all appear on the Boomerang channel. Cheers!
Call your local cable company and tell them you want the Boomerang channel. Time Warner Cable is buying up a bunch of small cable companies throughout the nation, which is not a bad thing considering that they have the most to offer for cartoonist! The Boomerang channel is also available on both Satellite systems, Dish and Directv.
Cartoon Network has not played these classic cartoons for some time now.
Whistling Wolf (Tex Avery's Southern Wolf)
WillyB! 
