Journal Biel Arvey San Diego Co., Mann Ranch. Starting from the Mann ranch, I walked south to where the fire break runs down to the valley. Walked up fire break for about 2 mi seeing and hearing Black Chinned Sparrows, Calif Thrasher, Bush Titie, Scrub Jays, 3 ravens, Bewicks orren. The fire break runs into a forest service road about 1 miles up, which goes to Mt. Palomar and to Oak Grove. I go towards Mt Palomar. The day is extremely hot and dry, vegetation is all scrub, but with patches of Pines (digger) in some of the deeper swales. Gradual work into some Manganita as I go higher, and further up, some Incense cedar, Blue Oaks (mostly dead) and big cone sprue(?). As I near the Palomar look out I see 2 Swifts overhead, which are long and dark, probably Black Swifts which may be unusual here. There are two spots for water on the way up, one about 4 miles down from Lookout, another 1 mile. At the lookout there is a 100 foot tower, and a residence, both closed. About 1 mile down the ridge is Palomar Obsv.