Wings

an eagle displayed

Variously borne, their position must be blazoned as displayed, addorsed, etc.

two wings conjoined

Two wings displayed and conjoined, also termed Vol. It is sufficient in blazon to say two wings conjoined, which implies that they are borne thus. See Vol

two wings conjoined in lure

When two wings are united with the points down. they are termed two wings conjoined in lure. See In Lure

demi vol dexter

A single wing is termed a demi vol and could be either dexter or sinister.

demi vol sinister

Wing of an Imperial eagle

French and German heralds ever draw the wings of their eagles with a small feather between the pinion-feathers.