digitS'
Garden Master
I don't believe that Black Capped & Mountain could cross breed or we'd lose one or the other, Thistle'. To my untrained eye, they seem identical, except for that eyebrow. Their activities seem to be the same. It must be that they don't recognize each other as kissing cousins . . .thistlebloom said:Mountain. I think. They have the little white eyebrows.
I wonder... do you suppose they cross breed with each other? We have both mountain and black capped up here.
I can imagine how birds like this develop - one group on one side of the hill and the other group on the other. Still, when circumstances change, they'd be back together.
Steve