How do magpies, crows, puppies and kittens judge sunny days and rainy days?

There are many animals in nature who can judge sunny days. In your question, if the kitten always rubs its eyes with its claws, it is a sign of rain.

Other magpies, crows and puppies can't judge. Most birds can distinguish insects, such as swallows. Because the humidity is high before it rains, water molecules in the air fall on the wings of insects, which makes them heavier, so they can only fly low, while swallows can only have food sources at low altitudes, so low flying of swallows is a sign of rain. Magpies and crows not only eat insects, but also have many food sources, especially crows eat carrion, so they can't be used as a basis.

Others are watching the fish in the fish pond breathing and jumping near the water surface, and the turtle's back becomes wet, which can indicate that it is going to rain.