No, because if they are interbreeding it is simply a mistake in classification classifying them as separate species before they discovered they could interbreed... Like Darwin did with finches... like biologists did with bears... etc, etc, etc....
Biological species concept - Simple English Wikipedia, the free encyclopedia
"The
biological species concept gives an
explanation of how
species form (
speciation). A biological species is a group of individuals that can
breed together (
panmixia). However, they cannot breed with other groups. In other words, the group is reproductively isolated from other groups."
So if you believe Polar Bears and Grizzly Bears are separate species.... you would be wrong. But then they classified them as separate species when they believed they could not interbreed.
Definition of SPECIES
"comprising related organisms or populations potentially capable of interbreeding"
Species - Biology-Online Dictionary
"In order to be considered into a species rank, the group of organisms wherein two of its members are capable of reproducing fertile offspring (especially through sexual reproduction). There are certain groups though that can still be further subdivided into subgroups (i.e. subspecies, such as varieties, formae, etc.)."
species Definition in the Cambridge English Dictionary
"biology
a set of animals or plants, members of which have similar characteristics to each other and which can breed with each other"
Defining a species
"A species is often defined as a group of individuals that actually or potentially interbreed in nature. In this sense, a species is the biggest
gene pool possible under natural conditions.
For example, these happy face spiders
look different,
but since they can interbreed, they are considered
the same species:
Theridion grallator."
"...So we meet again: When another storm reintroduces the island flies to the mainland, they will not readily mate with the mainland flies since they've evolved different courtship behaviors. The few that do mate with the mainland flies, produce inviable eggs because of other genetic differences between the two populations. The lineage has split now that genes cannot flow between the populations...."
species | Learn Science at Scitable
There is not two species hybridizing, because if they mate they are one species. Simply error in the classification of them as separate species that has never been corrected when finally discovered they could interbreed.
As I said before, evolution is error after uncorrected error after uncorrected error.