I don't know much about NTx doves, but the last 15 or so yrs W of SA
WW doves can be flocking bigger than blackbirds..
usually by late Aug, early Sept the whitewings from Amarillo, Lubbock, Abilene and Angelo plus probably some DFW birds drop on us here..
now we have adapted to these birds showing up and made
arrangements to entice and keep them here...Yuma Az calls itself the dove capitol of USA...
I'll contest that.