This actually gives us insights as to why it is so hard to define "species", since that would be trying to dichotomize a continuum.
And like any continuum with changes from one end to the other we can frequently be very definite at the extremes and less and less definite as we get closer and closer together in the continuum.
That is, there is frequently no difficulty but as two animals get closer to each other the differentiation is harder.
Lions and Tigers are, I think all would agree, different species. Then we have the case of the different varieties of dogs. Much less clear.
I understand, but don't know enough to say, that there are distinct species that are much more morphologically similar than many dog varieties. None the less they are distinctly different species.
mmmm that was a lot of more or less useless blather was it not?
I think what needs to be done is have the "creos" make it clear what they mean by "species" or "kind" or any other compartmentalization they want to talk about.