Chicken World Records 🏆
The hall of fame of extraordinary poultry. Every record below is the real thing, with sources. Fair warning: our calculators will fact-check you against these if you get ambitious with the inputs.
🎂 Oldest chicken ever: Peanut, 21 years 238 days
Peanut, a bantam hen from Waterloo, Michigan, was crowned the world's oldest living chicken by Guinness World Records and passed away on Christmas Day 2023 at 21 years and 238 days old. That is roughly triple a normal chicken lifespan of 5 to 10 years.
Source: Guinness World Records · How old is your hen? Check her age →
🥚 Heaviest chicken egg: 454 g (1 pound)
The heaviest egg ever reported was laid by a White Leghorn on 25 February 1956: 454 grams, with a double yolk and a double shell. That is eight Large eggs in one, and our egg size calculator will politely suggest an ostrich was involved if you try to enter it.
🍳 Most yolks in one egg: 9
Nine yolks in a single egg, reported by Hainsworth Poultry Farms in Mount Morris, New York, in July 1971. Regular double-yolkers usually come from young hens whose laying cycle hasn't settled yet. Nine remains the stuff of legend.
Source: Guinness World Records · How many eggs will your flock lay? →
🪓 Longest-surviving headless chicken: Mike, 18 months
In 1945 a Colorado farmer's axe missed the brain stem of a rooster named Mike, who went on to live 18 months without a head, touring the country while being fed with an eyedropper. His hometown of Fruita, Colorado still throws an annual festival in his honor.
✈️ Longest recorded chicken flight: 13 seconds
The longest recorded flight by a chicken is commonly cited at 13 seconds, covering just over 300 feet. Chickens can fly: briefly, indignantly, and mostly to the top of the fence you built to keep them in.
⚖️ Biggest and smallest breeds
Jersey Giant roosters can top 13 pounds; a Serama bantam can weigh under 500 grams. That is a 12x difference, like keeping a housecat and a mountain lion in the same yard. Both lay eggs. Both are, technically, chickens.
📏 Egg sizes, to scale
🎪 More barnyard fun
- Which came first: the chicken or the egg? The science answer, plus a vote.
- Do chickens like music? The studies, and two playlists to play your hens.
- The Chicken Math Calculator. How many chickens you will actually end up with.
- The Chicken Name Generator. Because "Henrietta" is taken.
Frequently asked questions
How long do chickens live?
A well-kept backyard hen typically lives 5 to 10 years. The world record is Peanut, a Michigan bantam who lived 21 years and 238 days (Guinness World Records).
What is the biggest chicken egg ever laid?
The heaviest reported chicken egg weighed 454 grams (1 pound), laid by a White Leghorn in 1956 with a double yolk and double shell. A normal Jumbo egg weighs about 71 grams.
Can chickens fly?
A little. Chickens can manage short bursts to clear fences or reach a roost; the longest recorded chicken flight is commonly cited at 13 seconds. Heavier breeds barely get airborne.