No, this is the cycle of life. A lot of stray cats fight to survive, they do not get fed daily and need to find their own shelter. If you are in to superstitions, this is not generally considered bad luck, unless the cat was black and it was Friday the 13th!
The road that they live on
I would think its bad luck to find anything dead in your yard, but I'm not sure if a cardinal means anything...usually its crows that are "bad luck".
It is not considered bad luck.
It is not considered to be bad luck to wear a Claddagh if you are not Irish. In fact it is considered good luck.
In some cultures, cutting nails on Friday is considered bad luck.
He blamed the road they lived on (apex)
ive heard it's bad luck and someone in your family is going to die
A jinx.
If you are supersticious, it is bad luck. If you are not, it means you have an extra job to do.
It is bad luck unless you do not remove it before it begins to decay and raise a real stink as well as draw flies.
No, black is not considered a bad luck color in dogs.
In some cultures, it is believed to be bad luck to point at an eagle.