It wouldn ’ t make much of a breakfast , but this tiny egg could give a schoolgirl and her pet hens a place in the Guinness Book of Records . Shannon Hayes , 12 , believes one of them has laid the smallest chicken egg in the world . After doing some research on the internet , she thinks its length of 1.8cm – smaller than a 5p coin – shaves two millimetres off the previous title-holder . Shannon said : ‘ I ’ m confident it ’ s the smallest . It is very tiny and you wouldn ’ t want it for breakfast. ’ Shannon Hayes , centre , believes her pet hen , right , has laid the world 's smallest ever egg , left . The tiny egg , left , is only a small fraction of the normal size of the traditional breakfast favourite , right . The tiny egg , which was laid in Capel Iwan , Carmarthenshire , is smaller than a five pence piece , pictured . She keeps seven hens at her family home in Capel Iwan , Carmarthenshire , but she is not sure which laid the tiny egg . Shannon spotted it among the ordinary-sized eggs in her hen coop . Fearful of it being crushed , she immediately took it into the house to be measured . In 2011 , an American farmer claimed his hen had laid the world ’ s smallest chicken egg , measuring 2.1cm long . That was beaten in 2014 by an egg one millimetre smaller laid in Somerset by a hen called Muffin . Meanwhile , Shannon is storing her potential world record-breaker it in the fridge for safe-keeping . Shannon believes that her egg , which measures just 1.8cm in length is 3mm smaller than the current record .
Shannon Hayes spotted the tiny egg at her home in Carmarthenshire . She rescued it fearing it was going to be crushed by the regular eggs . The 12-year-old measured the egg and discovered it was just 1.9cm long . It is believed the previous record holder was a 2.1cm egg laid in Carmarthenshire .