But I remembered once reading an article about some birds having a weakness that way.
Generally it was a raven that did it, and hidden away in a dark corner they would find trinkets and spoons and all sorts of things that were of no possible use to any bird.

In every instance they seemed to be bright and tempting, as if the bird had no eye for dingy things.

Well, these spoons have recently been scoured and cleaned so that they shine splendidly!" "Oh! now that you mention it, Hugh," broke out Thad, "I remember that several years ago, before I knew you, with another boy I climbed a tall tree to peek in at the nest of a pair of crows.

Well, sir, besides the young ones, what did we find but three strange things.

One was a key, pretty rusty at that; another seemed to be a piece of metal that might have fallen off a motor car on the road; it was made of brass, and still shone fairly well.