its a fancy lion... probably mutated with a dragon...
The animal on the Heath family crest is a rooster. Google "heath family crest" to view one.
A Lion is the animal on the Cullen family crest
there is no animal
A swan
The Cullen's crest bares a lion along with a hand, and shamrocks.
Most Ward family crests that can be viewed by Googling "ward family crest" do not have any animals on them. A few have a horse.
A Coat of Arms granted to a Parsons family is red, with three gold leopard's faces.
Family crest Bird's crest
Google "Mondini Family crest" to view several websites that have images of the crest.
The Cullen's Crest is a family crest that was in the movies. It wasn't in the books.
Most families never had a family crest. For those few who did, when a woman married, she joined the family of her husband and that crest would apply.
A medieval family crest is a symbol or "coat of arms" that represents a certain family with knights in their ancestry. A knight may have carried this crest on his shield.