Is it flowering?

It's way past flowering time. Here are a couple of photos. One overview so you can see how sparse the leaves look. The other is a closeup so you can see the clusters. One thing I didn't mention is that it appears the clusters are on the male tree. (Believe it or not, the male and female were planted in the same hole and have grown together as one tree.)

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Your fruiting pear was grafted on callery pear (P.calleryana) rootstock, and someone, somewhere along the line, let one or more shoots from the callery rootstock grow up, without pruning them out, so now you have a fruiting callery pear.
I can't tell from the distance photo which of the three main trunks is the actual 'fruiting/edible' pear, and which are the non-edible callery type? From the looks of that tree, it appears that the bulk of it is callery and not the more desirable fruiting selection.

I agree with lucky_p. You now have an ornamental pear similar to 'Bradford'.

Pear trees are not male and female, by the way. But it sounds like someone might have planted more than one type of tree for cross pollination benefits.

Lucky & Esh, I believe you are correct. I posted on the fruits/orchards forum also and got the same basic response. And you're right, the majority of the tree is the non-fruiting one. DH and I keep looking at it trying to figure out the best resolution. I hate to chop the whole thing down and start over. There's actually 5 main branches coming out of the ground. Two of them are the fruiting tree, but they're pretty much engulfed by the callery, so we think even cutting out small sections at a time won't work. *ugh* Perhaps it's fate saying that I need to completely re-do the front yard. :-)

Thanks for your help.