Some grocers are taking steps to stretch their existing egg supplies, the USDA found. It comes as the bird flu has caused egg prices to soar.

Trader Joe's has added a limit to how many eggs shoppers can purchase at all of its stores as bird flu shortages increase. Why it matters: The bird flu has affected at least 23 million birds in the last 30 days,

Several major retailers are imposing restrictions to help ensure customers can still by eggs as the deadly bird flu runs rampant.