Red Turtle Doves, also caled Red Turtle-doves and Red Collared Doves, are native to northern India, Myanmar, southern China, Taiwan, Thailand and the Philippines.
The adult male (above and top) has a grey head and rump and a rich reddish brown breast and wings, with a black half-collar.
The female (above) has a less rich brown colour on head and body and also has the half collar. Both have dark wing tips and tail.
Shouldn't it be an olive branch?