Sometimes, such small things as the cooing of a wood pigeon on a hot but gradually cooling summer's afternoon can be the most evocative thing in the world.
I suppose that for me, it's also reminiscent of childhood days in Chiang Mai, where it would have been zebra or spotted doves instead.
We have mourning doves, not sure how similar they are, but the sound always reminds me of waking up in the summer with my window open and the doves that nested outside my window cooing. All kinds of pigeons/doves are so lovely.