That reminds me of a time up on the Brazos with my father in law favorite Jim Putnam. He wanted to call some coyotes and so we went to his families place which had Camp Cooper on it, we were next to a ranch called the Lambs Head and the only place we could find to set up was next to a 6 tank battery with a flare. Big pumping station 2 miles east of us, loud as all hell. Hopeless I swear but I gave a 500 pound rabbit and zap,,, coyote 50 yards,, less than 60 seconds, dead stopped and father in law froze like a rock, too much too fast, he finally got off a running shot and missed by a mile.. Ha haWindypants,
If you're in cattle country, try some calf distress/bawls.
In cooler/cold weather I've had some luck getting them to pop up for a look to see if it's worth their time to join in on a kill.
Piglet distress works well, too if you have feral pigs around.
They are probably popping up, but only enough for them to see, not presenting much to shoot at. Think prairie dogs that have been shot at. They'll stick just enough head and eyes to see above the rim of the mound.
I had one a few years back on the Delaware River bottom that frustrated me to no end for about 45 minutes. He was answering me with barks, but I couldn't see him. I had started with a couple of howls, waited a bit, then cut loose on my e-caller with piglet distress. That triggered the barks, probably trying to figure out how many other coyotes might be down there.
I slowed down and started methodically glassing the hillside across from me. I finally spotted him at just over 400 lasered yards, with just his ears, the top of his head, and his eyes sticking up above the crown of the ridge. I couldn't shoot because there was oilfield activity about a half mile behind him and I didn't want to miss him and launch a round into the crew working back there.
Sometimes the promise of a big, quick meal will get them to show when other things don't.
Ed
My dad had a old Burnam Bros. call when I was 6 or 8 and he love calling foxes. He tore up every wore out doll he could find making something different. He had a little box of parts and I wound up with that stuff and switched things all around to make a different sound myself. My first coyote I called in was a mid day on a homemade squealer and I was 13, never got a shot he put the slip on me. When I as around 18 or so I went to the easy way, cassett and the famous wounded wood pecker and slaughtered the foxes. I stuck with e-callers until I noticed everywhere I could hunt, the varmints were now educated, glimpses of an eye once, night calling, flash of a ghost y movement by day so I got a 3 piece calling kit from Cabelas 2 open reeds and a squeaker. The squeaker was good and the wood pecker deal works 1/2 way but just didnt cut it. I saw some calls James Lucero had made for my friend J.H. and we killed coyotes by day 75% of the time, important coyotes I might add. I built my own from antler pieces and cow horns, even goat horns. I made some changes to my design and have used my calls in all the competition I've been in and I'm satisfied. I will tell you guys who are out there, if the cowboys are tipping at the pens, scarf up a feed sack full and pm me.Especially with the e-callers. It took me forever to figure it out on my own, by the cats, coyotes and fox telling me over and over to back off with the volume and length of time calling and resting between calling sequences. I had to listen to the actual animals and how they would talk everything gets tired or dies that is making distress sounds, everything that is just talking to someone else, does it in lower tones and not as much as one would think. Yes, please share with us all things that you are experiencing and figuring out.
Looking forward to your results,I will never deviate from Thompsons,as my success has been stellar.I will use them and see how well they perform in my situation as compared to the aircraft cable that I'm used to. I know that it doesn't open up as easily as the 7x7x21 and if it does it isn't as easily chewed into. I will probably wait till spring or early summer to first try them when I don't have to contend with bad weather freezing ground and snow drifting. Because they will have a learning curve like any other tool.