@Keelebilly - I agree with you that loss of Habitat is the main reason, predators have always been around and although Coyotes & hawks have increased in the East & Northeast the Gray Fox is greatly reduced and the hawks don’t kill anywhere near the rabbits that fox and other ground predators do. The property I’ve been able to hunt the past 10 years is over 800 contiguous acres and privately owned and managed for waterfowl - the rabbits are just an incidental by product and some of the habitat management practices actually work against rabbit cover (they mow & cut down some briars and burn/remove some brush piles. Also, the Red Fox population is very high - they hire a local trapper and he catches 90 to 120 Red Fox each Nov. & Dec. (year after year) and even stops trapping after Jan. 1st. They also are covered up in hawks — they don’t make a dent in the rabbit population and Niether do the rabbit hunters shooting 200+ rabbits off the palace each Winter. I had a property of 200 acres in NJ that looked very similar in cover - at least to me it look the same and was rarely hunted. But for some reason it just didn’t hold many rabbits - even with beagles we never killed more then 2 rabbits in a day and less then 5-6 in a season…they just weren’t there despite briars and thick cover?? Why, I have No Idea.
Any rabbit hunter/beagle owner with a good rabbit spot should feel “lucky”…it seems to be rare. We will only take a couple of close friends hunting to our spot - not because we’re concerned that the rabbit population will be reduced but because we don’t own the property and can’t risk someone aggravating the owner - driving on a crop field, leaving a gate opened etc.. that could ruin it for the rest of us. We treat that land owner like a Valued Family Member —- a “Favorite Uncle” and realize we are fortunate he allows us access to such a special place.