I'll be praying for Pepper's swift return home.
We actually found one of our parakeets, Jewel, outside one day. She was scrounging around in the grass looking for food.
Their instincts will kick in once they're hungry, but bring treats and food with you when you look for her. She'd sure appreciate them.
Try to make the whole community aware of your predicament, too! (A bit of an exaggeration, but you get my point.) When startled or panicked, I'm sure that birds can fly very long distances. Little Pepper might be on the whole other side of town, poor girl! <3<3<3
Good luck, aa