Eggs have been hard to come by for some consumers, with empty shelves spotted in some stores dating back to late last year. At the time, Trader Joe’s joked the egg shortage was prompted by chickens being on strike.

Several grocery chains are limiting the number of eggs customers can buy. Here's what to know about the shortage

Trader Joe's and other grocers are limiting the number of eggs customers can buy across the U.S., citing limited supply caused by the ongoing bird flu outbreak.