Here are some things to consider:
* Individual cat personality: Some cats are more emotionally sensitive than others. Just like humans, some cats will grieve more intensely and for longer periods.
* The bond between mother and kitten: The strength of the bond can influence the length of mourning. If the mother cat had a strong connection with the kitten, she might grieve for a longer time.
* The circumstances of the kitten's death: If the death was sudden or traumatic, the mother cat might grieve for longer than if the kitten died naturally.
* Other kittens: If the mother cat has other kittens, she might be distracted from her grief. However, this doesn't mean she isn't grieving at all.
Signs of mourning in mother cats:
* Loss of appetite: A mother cat might refuse to eat or drink for a while.
* Withdrawal: She might hide more, avoid interaction, or be less playful.
* Vocalization: She might meow excessively or make other distressed noises.
* Searching: She might search for the kitten or look around for it.
* Aggression: She might become more aggressive or protective of her remaining kittens.
What you can do:
* Be patient and understanding: Give the mother cat time and space to grieve.
* Provide comfort: Offer her extra attention, cuddles, and a safe and quiet environment.
* Ensure her basic needs: Make sure she has fresh food, water, and a clean litter box.
* Keep an eye on her: Watch for signs of prolonged distress, such as a severe loss of appetite or lethargy. If you are concerned, consult a veterinarian.
Important Note: It's crucial to remember that grief is a complex process, and even if you don't see obvious signs of mourning, the mother cat may still be grieving.