Rabbits and parasites in southern Arizona

We're starting to see daytime highs below 90F in southern Arizona, and I'm eager to slay some bunnies. Previously I've only hunted over 4,000 feet and after the first frost. But I read somewhere that rabbits in Arizona's desert regions have fewer parasites than elsewhere. This jives with what my vet told me about fleas and other pet parasites being rare in the Tucson valley.

Does anyone have first-hand knowledge of the edibility of summer rabbits in Arizona?
 
We have a ton of young cottons here in Queen Creek, but they are awful small. Ive pegged a bunch of Jacks but the rabbits as a whole have been skinnier than normal. It was a tough summer up here. 19 days over 110, 5 straight at 115/116. After that hot spell we noticed a huge drop in P-dogs and rabbits. Not sure about your area but must be the same. Still the cottons are tastey, you just need an extra one or two. I go with the BER harvest for eating. septemBER, octoBER, novemBER decemBER. Never had an issue. Very little fleas and I take the young for eating.