Just a small further comment in case it is any help in trying to identify the crest. The bird on the spoons is "belled". The little circles at the back of each leg represent the bells that are strapped to birds kept for hunting. That is, it is not a wild bird of prey so it is most likely to be described as a falcon or a hawk. I've spotted descriptions of crests where the bird is preying on a baby (!), a mallard, a mallard's wing and a hare as well as a coney (rabbit), none of which seems to match the engraving here. Maybe it is indeed simply meant to represent the bird's nest though I fantasise that the bird has just been fed a nice steak to eat.
One frustrating thing about trying to track down crests like this is that, even if you manage to identify exactly what is represented, you may find it was used by several families or that there is no record of any family using it. Only in a small minority of cases have I been able to use a crest to identify the original owner of a piece of silver with any confidence.