Sexing and weaning rabbit kits are typically done at different ages. Here are the general guidelines:

1. Sexing:
Rabbit kits can usually be sexed around 4 to 6 weeks of age. At this stage, the genitalia of the kits start to become more distinct, making it easier to identify their sex. Bucks (males) will have a small round protrusion, while does (females) will have a slit-like opening closer to the anus.

2. Weaning:
Weaning is the process of transitioning the kits from their mother's milk to solid food. It is typically done between 4 to 8 weeks of age, depending on the breed and individual development of the kits. It is important to observe the kits' behavior and physical readiness for weaning.

Signs that kits are ready for weaning include:
- They are actively nibbling on solid food.
- They are able to hop around and explore their surroundings.
- They are no longer solely dependent on their mother's milk.
It's important to introduce solid food gradually while still allowing the kits access to their mother's milk until they are fully weaned.

Always monitor the development and health of the kits closely during the weaning process to ensure they are transitioning well and growing appropriately. If you have any concerns or uncertainties, it's recommended to consult a veterinarian or an experienced rabbit breeder for guidance.