Alaska's Rat Island Returns To Being A Bird Paradise
While the presence of rats in homes may cause anxiety and annoyance, they rarely result in driving out the residents. But that is exactly what happened to the inhabitants of the 10-square-mile Hawadax Island off the coast of Alaska, almost 230 years ago. Now thanks to a five-year effort by conservationists, the eerily silent 'Rat Island' as it had been dubbed for many years, has been returned to its rightful owners - birds!
Hawadax Island is part of a chain of volcanic islands in the Bering Sea called the Aleutian Islands.The rats that arrived there in 1780 when a Japanese ship carrying them broke down nearby, completely decimated the native population because the environment of the island was not built to defend its animals from these predators. The main issue? The Island is treeless, which meant that the birds were accustomed to building their nests low in the ground, giving the rodents easy access to both eggs and baby chicks. As years passed, the birds that had called the island home for thousands of years, became endangered and eventually, disappeared completely.
In 2007, the U.S. Fish and Wildlife Service started a serious initiative to rid the island of the rats and try bring back the beautiful birds that had once called it home. Given that there were an estimated 10,000 rodents inhabiting 'Rat Island' and the fact that they re-produce rapidly, it was not an easy task. But by 2009, the Island was officially declared rat free!
Then slowly but surely, the birds began to return. Unfortunately, some of the pioneers were inadvertently killed from the remnants of the rat poison that had been used to wipe out the rodents. But now it seems things are becoming more stable and the Island is starting to increasingly look like its former self. Before the transformation 'Hawadax' AKA 'Rat Island' was a silent and ghostly place with bird bones, snail remains and rocks covered in rat feces.
Today, the sounds of chirping birds flying in and out is a common sight. Tufted puffins and song sparrows, which had long disappeared, are gradually making their way back. Conservationists have also been observing an increase in ground nesting and shorebirds. Though the Island is still not back to its full glory, the signs are encouraging and things can only get better, as time passes. With the constant discussion of global warming and species extinction around us, it is reassuring to see proof that the trends can be reversed.
Critical Thinking Challenge
Do you think the birds sensed that the rats were gone or was their...