Ring species

I'm not sure that ring species say anything to the concept of kinds. Creationists don't usually have a problem with microevolutionary changes within a kind which I'm certain is how they would classify the greenish warbler example.If they do object to the example it would probably be on the basis that they are only reproductively isolated due to pre-mating/pre-zygotic behavioural differences rather than actual genetic/physiological incompatibility, which is often used as a stricter more hard core form of species distinction.TTFN,WK

Which means they can still undergo significant gene flow, which is a massive difference in terms of population genetics. Reproductive isolation in warblers has been demonstrated to be due to mating song variation. There is also an increased genetic distance as one goes around the ring complex, but there is no evidence that there is a genetic basis giving rise to reproductive isolation.Similarly in the Ensatina complex the evidence suggests pre-mating behavioural isolation based on sexual selection for colour. That may not be as easy as you think. What questions does it bring up for creation? Creationists often tend to think that all birds are of the same kind based on scripture, why would they worry about further sub-divisions arising within that kind?TTFN,WK