What is a clutch?
A clutch is a group of eggs laid by the same hen on consecutive days. When the hen completes her ‘clutch’ her instinct can be to go broody and incubate them. In many heavy heritage breeds this may be 12-15 eggs laid on consecutive days. Modern commercial hybrids are selected for their abilities to lay large clutches of eggs without taking a day off, perhaps 30 or more. Each egg is laid slightly later each day on approximately a 25 hour cycle. Once the last egg is laid in the late afternoon, she may take a one day break and then lay again the following dawn, 36 hours later. Hens which have 20-24 hour cycles often lay bigger clutches without taking a break.
if you’re not sure of the age of an egg, use the ‘float’ test.