Eggs have been a hot and expensive commodity lately. Multiple major retailers have enacted an egg limit while Waffle House recently added a surcharge to every egg ordered. You likely won’t, however, find a limit on how many packages of chicken breasts you can purchase at your local grocery store,

Chicken prices are not suffering the same price hikes because broilers, the variety bred for meat production, are a different kind of chicken. According to The Hill, egg-laying chickens have been harder hit by the avian flu.

The price of eggs at U.S. grocery stores has climbed to a record high, nearly doubling from a year ago, as outbreaks of bird flu have led to shortages by wiping out millions of hens.