If your newborn baby rabbits have small white circles on them that resemble bites, there are a few possible explanations for this condition:

1. **Milia**: Milia are small, benign cysts that can appear as tiny white or yellowish spots on a rabbit's skin. They are typically harmless and often disappear on their own as the rabbits grow. Milia are not bites or injuries, but rather a common skin condition in newborn rabbits.

2. **Mite Infestation**: It is also possible that your baby rabbits have a mite infestation, such as fur mites or mange mites. Mites are external parasites that can cause skin irritation and small white lesions or crusts on the rabbits' skin. This condition requires veterinary attention to properly diagnose and treat.

3. **Fungal Infection**: Some fungal infections, such as ringworm, can cause small white circular lesions on a rabbit's skin. Ringworm is contagious and requires veterinary diagnosis and treatment.

4. **Bacterial Infection**: Bacterial skin infections can manifest as small white spots or pustules on a rabbit's skin. These infections may occur due to trauma or compromised skin, and they require veterinary intervention.

It is important to have a veterinarian examine the baby rabbits to determine the exact cause of the white circles and provide appropriate treatment. A professional evaluation will help identify the underlying condition and provide guidance on how to best care for the rabbits' health and well-being.