No, they do not drop dead. Red sex links are a hybrid, created by breeding a RIR rooster with a white hen such as a Delaware or a Leghorn. They are bred to lay a copious amount of eggs in their lifetime; they lay way more than “regular breeds”, up to 320 eggs per year. Because of this, they tend to have shortened lifespans compared to most breeds. The average lifespan is 3 to 5 years, but with good care they can live and lay longer than that. I have read people on here saying they have 8 year old sex links still laying. I have had many red sex links and they tend to succumb to reproductive issues above anything else; that is what I normally lose them to. I have one that is 3 years old and deteriorating, but still alive and doing ok so far. But if you’re looking to get the most bang for your buck, red sex links will definitely lay you tons and tons of eggs.