The first bird I heard at this place, as soon as I stepped out of the car, was a Costa's hummingbird. Though they have a high-pitched call, they are extremely loud. Even if you have hearing loss on the high end, they should be loud enough to hear for most people. They sorta sound very insect-like.
I tried to find a black-tailed gnatcatcher, but couldn't. Instead, I got this photo of a blue-gray gnatcatcher. This print is for sale on Fine Art America:
The black-throated sparrows weren't being very co-operative , this is the best shot I got:
A loggerhead shrike is looking for lizards to impale. He seemed completely undisturbed by my presence:
Mockingbird peering at me:
Ravens were everywhere, but no crows.
There was also a flycatcher there that sounded unfamiliar. I think it was a Hammond's flycatcher. Both it and the Pacific Slope flycatcher migrate through the area and it didn't sound like a Pacific Slope flycatcher to me. I didn't get a good photo except I did get one with a definite notch in its tail. It was also fairly yellow-ish.
I didn't see any quail or even verdin, which is kinda strange. Someone else saw an Inca dove in another spot in Borrego Springs.