Guess the Mystery Fruit

This is the developing fruit ("fruit" in the botanical sense) of a common native tree in our yard. We didn't even realize what kind of tree this was until someone walking by the yard informed us one day. Then we realized that the fruits of this tree might be desirable to us, but we haven't been very lucky because of some stiff competition from the animal world. Anyone care to guess?

Otherwise, the first of my oriental lilies, daylilies, and poppies all had their first flower today! It's like Christmas day for a gardener! I'll take pictures the next time it isn't rainy and overcast.