> Apparently they can’t hear male voices. Their hearing is sensitive to higher frequencies than most male voices and the usual human range. I usually chirp or m

> Apparently they can’t hear male voices. Their hearing is sensitive to higher frequencies than most male voices and the usual human range. I usually chirp or make other high pinched noises to get their attention-though still get ignored much of the time, of course. Not unlike dogs. My girlfriend is a pet behaviourist, but sees mostly dogs. And she says that one of the hardest problems is getting the male owners to engage with their dogs in a higher-pitched, fun and excited voice.