Collecting rust patterns

I’ve just enjoyed a brief interlude in clearing away the clippings that have come from the Pyracantha hedge planted by our neighbour.  Merv has trimmed it for me and my job is to collect it and put it in the green bins (fortunately I have the use of three of them because some of the houses here do not have gardens - or if they do most of it has been converted to hard landscaping.  I’m just finishing my cup of tea and then going back out to complete the job.  Pyracantha is horrible stuff - he was determined that no one would get through the hedge to steal his Koy carp.