Polly and the Galloping Horse

We had a trip out to the Yorkshire Sculpture Park today at Bretton, Nr. Wakefield.  A sunny day but bitterly cold.
This is a rather amazing animated 'sculpture' of a galloping horse done with LED lights.
Polly dog just didn't know what to make of it.  She knew it wasn't a squirrel - or a rabbit - but what was it?  When it didn't jump down off its pedestal she lost interest :-)