I have had great success with a number of bird seed products in Wrightwood and I buy them all at Mt Hardware. I feed one feeder with Sunflower seeds. Chickadees, Jays, Nuthatches, and House Finches all love sunflower seeds. I keep a suet feeder up year round...not just in winter. It attracts Woodpeckers, Jays, Flickers and House Finches. I also put up the Niger seed feeder (with the upside down perches) for the little Goldfinches. They also like the socks to cling to and eat. Finally, I have a feeder with the bird seed that Mike sells in the red bags that attracts everything. Everyone seems to like that...you might even attract some of the wild Band Tailed Pigeons. The Jays love whole peanuts in the shell. Have a bird bath or source of ready water for the birds. If you provide food and water, they will come.
I keep Hummingbird feeders up year round (I live at 4,500 feet) and get hummers year round. When they migrate in , I will refill 10 feeders a week. Right now, we have four or five that are feeding off the nectar from the Manzanita blossoms.
Good luck and have patience. We are fortunate to have lots of incredible wildlife in our backyard.