Hi there experts! Need your opinions and advice! My duckling of 1.5weeks old (Indian runner duck) is making a small-like sound of a horn? The other two ducklings are still peeping they’re usual chirps but my black duckling started doing this noise maybe two dats ago? At first it sounded muffled and wasn’t as often but now it seems it’s whenever he’s vocal or wants to chirp that it sounds like a small horn. I know females when adults sound like horns right? Not sure if maybe my duckling is displaying signs at such an early age that it’s a female?