Family Crest Heraldry meanings?

Question:

Family Crest Heraldry meanings?

Could anyone helps us out on the meaning behind these symbols (Taken from various family crests not just paternal):
Upward Chevron ^ (Black)
Birds (Green)
Bow (As in Bow & Arrow without the arrow)
Yellow Crescent moons with the two points upwards
Yellow Cross with blue vertical stripe
Lions
Castle Tower
Red rings
3 pronged Red Iron cross on top of a upward chevron with circles inside
Griffin heads

Best Answer - Chosen by Asker: Heraldry & the Parts of a Coat of Arms
http://www.fleurdelis.com/coatofarms.htm...

The Meanings Behind the Symbols
http://www.fleurdelis.com/meanings.htm...

Some FREE and shareware Heraldry programs for designing your coat of arms.
http://www.digiserve.com/heraldry/hersof...