Why does your female rabbit cower and make funny noises when your male goes near her?

Your female rabbit may cower and make funny noises when the male approaches due to fear or discomfort, which could be related to her past experiences or personality. She might be feeling threatened or anxious, especially if she hasn't been properly socialized with him. It's also possible that she is signaling her rejection of his advances if he is displaying mating behaviors. Ensuring both rabbits are introduced gradually and in a controlled environment can help reduce stress and improve their interactions.