I have a female cockatiel and she’s pretty quiet unless I intentionally get her to be loud, by playing cockatiels singing on YouTube. Or when I get home she’ll have her contact call but once I greet her and take her out the quiets down pretty quick, I tend to leave her cage open when I get home and that makes her happy, but it’s the top of the cage I leave open so she’ll feel as if she’s free. I keep her wings clipped since I take her outside with me a lot, she’s very tame and she’s a cinnamon pearl, pearl females tend to keep pealing while males loose the pearling ( from what I learned), never had a diamond dove but my cockatiel is relatively quiet most of the time and enjoys just being out the cage around me or on my shoulder most of the time, but she sure loves her head scratches. 
