The water treatment marsh in Tucson called Sweetwater Wetlands has historically been a good place for Arizona cotton rat and bobcat. My brother lives in Tucson and as of 04 March 2021 is now at exactly 50% success rate for bobcats in 2021. He has seen them 14 times and missed them 14 times. There is no particular pattern other than early in the day and late in the day seem best, and if they are around, usually they are fairly tolerant of photographers and general gawkers. Note that Mondays they usually open late due to vector control zapping the mozzies, but otherwise it is open sunrise to sunset. Info on the Tucson Audubon Society rare bird alert webpage. In the past there have been some break-ins in the car park, so if you can leave luggage in the hotel, I do recommend that. It generally is safe and you can check with Audubon Society for updated information.
Photo credit Jose Gabriel Martinez Fonseca, aka the Yapok Catcher. All rights reserved.
Note posted by Charles Hood / Palmdale, CA