Try a distress rabbit pred call. Bobcats are a shy solitary cat and can be tough to call in. Good luck.

get some hounds

set up in a spot with good cover and a large surrounding open area,blow a rabbit in distress call and keep a close eye on the surrounding cover,they come in very sneaky and rarley rush in like a coyote,good cammo for the season/terrain is a must.Often times they will try to flank you so keep an eye on ur 6!

Try a fawn Disstres the cats love that.
Yumm!

Use high pitched rodent squeeks, and wood pecker calls. In my experience and from what I have read about them, they prefer softer higher pitched noises, since the majority of bobcats are feeding on pack rats, chipmunks, and ground squirrels.

Calling the cats, bobcats and cougars, is done basically the same as calling coyotes... Now, to begin with, let me tell you that there are not many cougars in my area...and I have never called specifically for them. I have called in and seen only a few in the many years I have been calling, and those came in to calls I was makeing for other predators...and I just watched them, but did not shoot, as it is illegal to take cougars here.... But about the only thing I do different when calling bobcats is that I plan on staying on stand a bit longer than for coyotes. When calling coyotes or fox I will figure on staying on stand maybe 20 minutes...but when calling cats I may stay for 30 minutes...or even longer. Coyotes often come in fast, not always, but often... but cats generally are more cautious and usually take more time to show up... This is not always the case, but it generally is...and of course I never use a howler when calling bobcats, I just use the same prey species distress calls that I use for coyotes.