These birds, weighing in at 38 lbs. each, have unusually precise detail and modeling among the animal portrayals  found in this medium.  The size too is unusual with the pair surviving in excellent condition.  Four base chips and several tiny chips to the end of tail feathers confined at the back exposure.  All chips are imaged with no cracks nor restoration.  Figural sewer tile is generally a thing in the Midwestern states so that area is the best candidate for origin though J. H. Bell of Owensboro, Ky. achieved this quality in his smaller objects.  Less likely him as many of his figural pieces are signed so one would presume he would have marked such a stately work.