I'm using mouth calls, but D06 sounds like the one you want.
There are a number of different howls, each to be used in different situations. The first couple Randy Anderson Videos do a great job of describing them. I recommend them highly, even though their entertainment value is sub par in my opinion, they are very educational. I'm sure there are new ones out that are also.
The two howls that I use the most are the interrogation howl, and the challenge howl. They are the standards.
An interrogation howl is a rather long howl, that just says "Hey, anybody out there." It is a social call, but it can trigger a territorial response as well. I use it 5:1 over the challenge howl, because it is less threatening. It works on yotes of either sex, and any age. A challenge howl is short and breaks off quick. This one appeals to the territorial responses almost exclusively. It will often times bring a dominant coyote in with the hair standing up, but it will also intimidate the more subordinate yotes, to the point where they don't even want to get near you.
Also, be wary. There is such a thing as a warning howl, that sounds a lot like a challenge howl. If you hear it, you've most likely been busted already, and if you make that sound yourself, you are going to have a hard time calling anything in at all.
I never start off with challenge howls. I use them only if I have reason to believe that there is a coyote out there that is dominant. If a yote skylines him or herself, and they have an aggressive posture to them, I'll challenge. But the best time of all to use them is when they challenge you first. This should bring a smile to your face. Give one right back, and you'll usually have them on a string. I'll also use them if I can see a coyote, but it isn't committing. Sometimes it works, other times not. If it's hung up, I'll try just about everything to see if it triggers a response.
That's how I learned about the bawling fawn. One day in SD, I had a coyote hung up a half mile away. He sky lined himself on a ridge and just sat down for over a half hour. I threw every sound I had his way. Nothing. He wouldn't budge. Then as a list ditch effort I did my best to imitate a distressed fawn, and got an instant response. As it turned out, the yote had a crippled foot, and thats when it dawned on me, that not every yote out there thinks it's worth their time and effort, to try and beat the competition to a rabbit, especially if they are far off. Certainly this one didn't want to stress his already injured foot. It's been my staple distress call ever since.
There is also such a thing as an invitation howl, but to be honest, I don't even remember exactly what it sounds like. I think it's similar to an interrogation howl. But maybe look into it. I think it would be a great call for February.
