One of my females is making a sound I've not heard before - it's sort of a low-pitched, one-note honking sound, very short and she makes it often, right after the group alarm call usually. I'm just wondering what it might mean. I asked her, but she refused to answer . Also, I have another female who makes the 2-syllable call, but with a "trill" in the middle. It's very pretty...does anyone else have a female who does this? Just curious.