A study of South American songbirds completed by the Department of Biology at Queen’s University and the Argentine Museum of Natural History, has discovered these birds differ dramatically in colour and song yet show very little genetic differences which indicates they are on the road to becoming a new species.
For decades scientists have struggled to understand all of the varied forces that give rise to distinct species. Mr. Campagna and his research team studied a group of nine species of South American seedeaters (finches) to understand when and how they evolved.
Source: Science Daily
It’s a common argument by those who do not subscribe to evolution that it has never been observed. But, it has been, MANY times – in the lab and in nature. We have astounding amounts of evidence of speciation. This is just another observation. And, for those arguments for “micro” vs “macro” evolution… little steps and lots of time add up to big changes.