Here's why:
* Hawk size and species: Hawks vary in size. A small hawk might be able to take a kitten that a larger hawk would find too challenging.
* Kitten size and breed: Kittens of different breeds grow at different rates. A larger breed kitten will be bigger than a smaller breed kitten at the same age.
* Kitten behavior: A playful kitten might be more likely to be caught than a cautious one.
* Hawk hunger: A very hungry hawk might be more likely to take a chance on a larger kitten than a well-fed hawk.
It's important to remember that hawks are predators and they will take advantage of any opportunity to catch prey.
Instead of focusing on a specific size, here are some things you can do to protect kittens from hawks:
* Supervise kittens outdoors: Keep kittens under close supervision when they are outside, especially in areas where hawks are known to be present.
* Provide safe enclosures: Consider using a catio or secure outdoor enclosure to allow kittens to enjoy the outdoors safely.
* Keep kittens indoors: The safest way to prevent hawks from harming kittens is to keep them indoors, especially during the first few months of their lives.
If you do see a hawk harassing a kitten, you can try to scare it away by making loud noises or throwing something at it. However, it's important to stay safe and not put yourself in danger.