@ClothAnnie
You will love this thread i think Pear trees that produce bushels of fruit and avoid disease. I take a different approach to growing pears than many others do. Anyway back to your question pear fruit buds look like the photo below so i know before the tree breaks dormancy what my pear crop is going to be. You could say pear fruit buds look like tiny little footballs
Then they look like this
Once the buds open then the blooms look like this
Then this
Then this
Then this
Then this
Finally they look like this
At the base of the flowers if they are pollinated properly and if the tree is ready and has plenty of nutrients and water the fruitlets will develop. Flowers will open full and Petals will fall leaving fruitlets forming
Once you look through this thread Pear buds, blossoms, and fruit 2017 you can spot the fruiting trees quickly like i did by your photo.