I think the chipmunks are going to go hungry this year. I went out 2 weeks ago. Drove 60 miles of dirt road in the pinion trees. I didn't find a nut one. Last year at this time you could scoop up the nuts with a shovel. Then a couple days later went out on the west desert same ol. None this year. You might try the Natural food store. Sorry can't help ya.
Rutnbuck