Post top comes alive
Grows broad, fingered wings, talons
Shadow spreads then drops
n.b. The motorway fences on the A6 through France are adorned with sunlit totems. These large birds of prey are decorated in patterned coats of browns and creams.
Some are buzzards, some look like ospreys, which I know are fishing raptors associated with water. This is the time they migrate southwards, so is it possible they take a rest as they travel towards north Africa and beyond? It is a perching bird near water.
Following further research, I understand that these lighter coloured birds are possibly buzzards going through a “pale phase“. Osprey definition and meaning | Collins English Dictionary