A sign of the coming winter a drake scaup was on Pant pond this afternoon (Friday). It was still in eclipse so a bit scruffy. Plenty of kites and buzzards on surrounding stubble fields. Re mandarin I did not check it out in the books as it was obviously an escape but on checking BWP I agree it probably was drake in eclipse. I did notice the sails on the drake were not fully developed.
Scaup is a scarce bird in the county and especially so away from the coast.