Apart from finding the feather, it means nothing at all. Not all naturally occurring phenomenon are to be interpreted as omens. Finding a black and white feather is one such occurrence. Unless the feather is from a bird with specific importance to you personally, I would say it is just a lovely bit of nature and bringing it home will if nothing else make you smile and perhaps remind you of the day you found it. It realy depends on how *you* feel about it, and what lead up to discovering the feather. In many Native American tribes a feather of any kind is a message. Many are found after you pettion for an answer, or pray. It is seen as a sign of your prayer or pettion being heard.
It means a blackbird was in the area.
that there was a white bird on your porch...?
Finding white feathers can mean many different things. Most people interpret finding a white feather as a sign of peace.
bad stuff
It means that somewhere in your vicinity a fowl with white feathers lurks.
White feathers mean calling a truce and peace. Little white feathers are a symbol of angels and finding white feathers means an angel is watching over you or as a reminder that they are there to bring hope and comfort.
Sending a black feather can mean a great many things. Sometimes sending someone a black feather can mean wishing death on them.
Depending on the surrounding circumstances you or someone close to you could have a brush with death.
Not all naturally occurring phenomenon ca or should be intrepreted as a sign of omen. White feathers with black at the tip are common from several species of sea gulls. Unless you live in a land locked area sea gulls are just about everywhere and therefore finding a feather from one is not uncommon.
Finding a cardinal's feather has no significance other that the pleasure of finding such a pretty thing. There is nothing supernatural involved.
A white feather is thought to mean as an angelic symbol. The appearance of a white feather means that the person possessing it has had a angelic visitor.
A crow has lost a feather.