I'll agree on warm temps and breeding season. I'll also add they sometimes make loops. Might only be around once a week, every 10 days, or maybe even every couple weeks. If the population isn't as high as you might have thought, they may just not need to feed on the carcass?
Here is another wild card: Are there others in there hunting surrounding properties that you may not be aware of?
Here is another wild card: Are there others in there hunting surrounding properties that you may not be aware of?