Lastly, the broadcasters talked about the mortality of the baby finches on the island due to the species flies called Philornis Downsi. It is still a mystery for the researchers to how and where this species originated, and how it found its way to the island. Adult flies feed on flowers and decomposed foods, but the baby flies’ sucks on blood. The reason for the ninety-five percent rate of death for the baby finches is because as soon as the birds lay their eggs, the female flies go to the nest and lay their eggs beneath it. Once the eggs hatched, the eggs of the flies’ hatches as well. The larvae then crawl into the baby birds, towards the beak and noses, then started eating. Scientists did a survey on four different species in two different