London, Jan 23: A little hen shocked pupils at a British school when she laid eggs as big as grapefruits.

A Columbian blacktailed cross, known as Little Lil, lives with three other pet chickens Auntie Madge, Auntie Edie, Auntie Doreen at the Raikes Centre pupil referral unit in Gloucester.

Teacher Kate Farminer, 54, is at loss of words.

"We've got four pet chickens here and Little Lil is by far the smallest and also the quietest," the Daily Express quoted Farminer as saying.

"So we were amazed when she started producing these enormous eggs. You wonder how she gets them out. The children think they are dinosaur eggs. It's very exciting for the children to have something special like this," she added.

One of the eggs was so large that when it cracked open, the children found another egg inside.

The six months old hen had began laying eggs last October. She lays a normal-sized one every day but has dropped one enormous egg a month.

Moreover, the staff hasn't been able to measure the weight of the eggs because the 10cm whoppers exceed the scale's maximum weight. (ANI)