Yes there are many cases of hybrids among species.  It is almost always at the specific level.  This would be a difference at the generic level.  It is unusual to have organisms of  different genera hybridizing. (although there are probably examples of that too)  But have it!  Each to its own!

Jim Tomko
---- Ken Andrews <[log in to unmask]> wrote:
> Woodpeckers mixing:
> Don't many species of ducks cross-breed? This article states that Mallards have been known to mix with 50 other species and Wood Ducks with 25.
> http://www.ducks.org/conservation/waterfowl-biology/waterfowl-hybrids
> Don't warbler species cross-breed?
> My friend in California/SF Bay area has posted photos of red-shafted and yellow-shafted flicker hybrids.
> RBWO and Flickers are about the same size. And, they are both woodpeckers.
> (It would be a lot crazier if the flickers and gnatcatchers were pairing up.)
>
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