I know huh?! I wondered the same thing and did a bit of reading. Here's what the Desert Museum had to say:
By spending most of its life underground, the western blind snake has no need for visual acuity. While not entirely blind, it does have vestigial eyes thought to be capable of seeing light only. If disturbed, it will writhe and wiggle its tail to focus attention here instead of on the head. Preyed upon by a wide variety of animals, including birds, mammals, snakes, fish and even spiders, the western blind snake is a specialist in its culinary desires: ants and termites along with their eggs, pupae, and larvae. Millipedes and centipedes are also occasionally eaten. When searching for food, a western blind snake will hunt until it finds an ant pheromone trail and follow it back to the nest to consume the residents. The smooth, tightly overlapping scales provide protection against the bites and stings of ants. This small serpent shares a feature with the much larger boas and pythons—the remains of a pelvic girdle and femur, complete with a tiny spur! A secretive, nocturnal snake, the blind snake lays up to 7 eggs in mid summer.
At just 7 eggs a year it would be pretty difficult to grow any numbers. One thing I didn't mention is how these things move. They're a bit wild, wiggling like crazy, EVERYTHING must love eating these guys. It's no wonder we don't commonly see them (aside from being fossorial). I'm surprised this one escaped the chickens.
Yeah I figured, but it does not hurt to ask.. We all really appreciate your time in finding the answer & valuable information...