Not all naturally occurring phenomenon are to be interpreted as omens. A red cardinal tapping at your window is one such occurrence. Unless cardinals have a specific significance to you or a member of your household, I would see this as nature interacting with you in a positive way. If the house is new to you, it may just be that the previous owners fed the birds and they came to "remind" you that the feeder was empty. The other possibility is that cardinals like most birds are remarkably territorial during the mating season, if the sun was at the correct angle the bird could well have seen his own reflection in the surface and thinking it a rival was trying to chase it away.
i stands for diffrent things!!!!!!!!!!!
red
There are a lot of redbirds where you are.
Big Red (a cardinal)
Red and White
No,they are only red
The Arizona Cardinals team colors are Red and White.
it means that they are running for Pope......i think, that was it. The Cardinals of the Catholic Church wear red because it is a symbol that they are ready to shed their blood (hence the color red) to defend their faith.
Rear Window Defroster.
bad luck
A black bird symbolizes death.
red