Coincidence.
it is a math term
no
Not all naturally occurring phenomenon can or should be interpreted as a sign or omen. Cardinals are a bright colour and readily visible. During nesting season both parents are extra busy feeding their growing young. There is a good likelihood you have a pair nesting in your area, and this is why you are seeing them so frequently.
A cardinal is a senior ecclesiastical official, usually an ordained bishop, and ecclesiastical prince of the Catholic Church
a number denoting quantity
Cardinal numbers - it's Spanish.
Cardinal numbers - it's Spanish.
Finding a cardinal's feather has no significance other that the pleasure of finding such a pretty thing. There is nothing supernatural involved.
Chicago does not have a unique state bird. If you mean what is the Illinois state bird that would be the northern cardinal
I believe you mean "cardinal." The answer is 7.
Finding a cardinal feather is often considered a symbol of good luck, protection, and a message from a loved one in the spiritual realm. It can also be a reminder to stay positive and connected with your inner wisdom.