Galapagos birds helped Darwin formulate his theory of evolution. Now some of those birds have evolved a dislike of all the noise of busy tourism.

There are now at least 13 species of finches on the Galapagos Islands, each filling a different ... from an original paucity of birds in this archipelago, one species had been taken and modified ...

Far from the mainland and one another, the Galapágos Islands host animals with ... in London did Darwin realize that birds with very different beaks that he originally thought were from different ...

Under these drastically changing conditions, the struggle to survive favored the larger birds with deep, strong beaks for opening the hard seeds. Smaller finches with less-powerful beaks perished.

But this volcanic island is home to an unusual group of birds ... beaks and behaviours to aid survival in their specific habitats, but are all descendants of a common ancestor. The variation in the ...

But a similar finch on another island has a big, thick beak for eating seeds. The tortoises on some islands have shells that are dome shaped because they eat plants that are low down. But similar ...

The finches in the above video were collected from the Galápagos Islands in ... and shape of the beaks have enabled the different species to specialise in different types of food: seeds, insects, ...

Then, they watched to see how the birds responded. The male Galápagos yellow warblers that lived near roads on both islands reacted more aggressively when they heard the recording of the ...

The Galápagos rail (Laterallus spilonota) is a largely flightless bird and as such is particularly vulnerable to predation.

But a similar finch on another island has a big, thick beak for eating seeds. The tortoises on some islands have shells that are dome shaped because they eat plants that are low down. But similar ...