Moosetrot -

Apparently, no interbreeding. Also, as Eurasian collared doves spread across North America, there was talk about them out-competing mourning doves for food and perhaps even for nesting sites. Recent literature I can find pretty much dispels any competition. Most states, however, treat them as a recent invasive and do not have closed seasons or bag limits.

I've been taking advantage of their "invasiveness" for several years now. The weight of a cleaned breast is just about twice that of a mourning dove and the meat is very similar (I can't tell any difference in taste). They can be pretty sporty as well, especially with a beat up old pellet gun.

Jack