This is a discussion on ID help please within the Invertebrates | Insects forums, part of the UK Wildlife category; Took this photo of i have no idea what, it was dark took it in the morning, looks like its ...
Have looked at this a good few times and I think you are correct in saying it is the Poplar Hawk Moth. Did you use flash - as that might have made the colours difficult to see - the shape looks about right! Did you disturb it at all? If disturbed it flashes two red/brown patches that are usually covered when at rest...