Green-tailed Towhee and Dusky Flycatcher near Cuyamaca Peak.
Today, 5/27/2018, I spent the day hiking and birding from Paso Picacho Campground to the Azalea Glen trail and Lookout Fire Road to Cuyamaca Peak. Along Lookout Road I saw a flycatcher that I couldn't identify, but heard two-note call, along with a "whit" call that I thought might be a Dusky Flycatcher. I recorded the call on the way back down, and played back sounds from the Sibley app, and the sound I heard sounded just like the recording of a Dusky Flycatcher male calling. I don't have the exact location, but I think it was about 1.5 miles down the road from the peak.
Also seen about 0.5 miles down from the peak was a Green-tailed Towhee, a bit past the intersection with the Conejos Trail.
I also saw a Fox Sparrow, quite a few Purple Martins, lots of Violet-green Swallows and Black-chinned Sparrows, plus several other expected species.
Here is the eBird list that has the Dusky Flycatcher and Green-tailed Towhee. I will add some recordings of the flycatcher to my eBird list when I am able:
San Diego, CA
Source: SanDiegoRegionBirding Latest Reports