The Wiltshire flag is another recent addition to the family.

Designed by Mike Prior the flag shows a Great Bustard which was extinct but is now the result of a breeding programme on Salisbury plain. 

See a BBC article on it here

Wiltshire is another county with rival flags, the below version used to be the favoured flag, the green and white colours are the same but it features a lion rampant in the top left corner.

A third design which was pushed for a while is this white horse design, you can buy the above two flags but not this one, there was a small campaign and a wesbite which seems to have disapeared recently.