Ok this is a male Reed Bunting and female Chaffinch having a scrap near a bird feeder at Slimbridge Wetlands..... trust me that Reed Bunting was very protective lol!!! The b/g are reeds.. I thought I would mention it again I LOVE this lens.... It is interesting playing around with the different AF settings the Mark III has to offer because getting small birds in hovers is not the easiest of things to do! Still have no real definitive answer on that one but am narrowing it down!