Don't know if it makes any difference to the doves or waterfowl but it seems to me a yellow would blend in to more terrain than a black from above. I've only owned blacks or yellows, four blacks two yellows. They've all had some differences in personality but were good hunters and overall typical Labs. One yellow, a $100 female with a not so great pedigree, took a little more time but by the end of her second year was as good an overall hunter as any.