What TRnCO said is so very true . When some ranchers let every body and their cousins hunt, it makes it harder for all . It's hard to clean up after others that have educated the coyote . Are you using an e-caller ? If so stop and use some hand calls for awhile . This is the time of the year that they are thinking about sex more then food . They should be setting up an area to be denning and pupping in now if they are a breeding pair . If they aren't a breeding pair they are notoriously hard to call at any time of the year . As TRnCO said this is the time of the year they respond to vocalizations . I don't like to use aggressive coyote vocalizations any time even now as there are a lot of non dominate coyote out there especially if there has been many other callers around because they probably got killed first . Long lone howls wait a minute or even two and do it again for up to ten minutes then you can go with a couple of howls of average length and two barks and another howl give it a couple of minutes and do it again for up to 15 minutes . often I will start with this series of vocalizations with out the long lone howls or just the long lone howls and nothing else using one or the other by them selves . Keep track of the moon and where it's at in the sky if I am right it's been high in the sky during a lot of the day light hours . they and the prey animals will be more active two hours before and two hours after moon rise and again the same with moon set but not very vocal with it up during the day unless it's real cold and then they will do some talking when they get up from their nap and want to meet up . Then it will be two short partial howls and two quick barks repeated 30 seconds to a minute apart so they can hear a reply to it . They will do this several times if they don't get a reply . Bait piles aren't always productive if they have been pressured hard at them they learn not to use them or only when they feel secure they won't be bothered at them . If they have been pressured hard they will be very cautious hence the nick name gray ghost . If there are feral dogs that are of any size the coyote will be cautious and often not very vocal , do you think you would talk much if every time you said something you got your butt kicked , I wouldn't either . As your doing your walking look for sign , don't sky line yourself walk as quietly as you can , avoid walking where you don't have visibility such as in the bottoms of brushy draws . When your on your scouting walkabouts travel lighter then normal , water , a snack , rifle and a couple of hand calls and binoculars , look at the sign in stock or animal trails going and coming from the brushy or rocky areas . If you think you heard two separate groups of coyote talking you may only have four coyote at this time of the year up to a possible six , they are in breeding mode paired up and setting boundry lines . The size of their areas depends a lot on the prey base the more available prey the smaller their home areas the less available prey the larger their home area . Best of luck to you , Study and study your prey some more learn what when and where at what times they are in your new area the four w's what , when , where and why apply especially when you go into a new area , they have made it their home for most of their lives you just got there . Often when I got a call to do control work I didn't do anything but look for the place to find them at first , then I called after I knew pretty much where they were , when they would be there , why they would be there , where there boundry lines were . Tracking if you can , rocky areas and real grassy areas , are hard tracking , tells you so much and will save you a lot of time as well as effort hunting for something that isn't where you are hunting and calling .