Hi John and Sarah
As you know, I am waiting to be able to enter Pied/White Wagtails separately. I have just done a review of records over the last eight years and found that I will need to be able to differentiate between the following, as well:
Greater White-fronted Goose, Anser albifrons
Greater White-fronted Goose (Greenland race), Anser albifrons flavirostris
Greater White-fronted Goose (Siberian race), Anser albifrons albifrons
Brent Goose, Branta bernicla
Brent Goose (dark-bellied), Branta bernicla bernicla
Brent Goose (pale-bellied), Branta bernicla hrota
Black Brant, Branta bernicla nigricans
Yellow Wagtail, Motacilla flava flavissima
Yellow Wagtail (blue-headed), Motacilla flava flava
Yellow Wagtail (grey-headed), Motacilla flava thunbergi
As yet, in north-east Wales I have not had to grapple with subspecies of many warblers, so will leave them for another time.
Will these be included in the awaited dictionary upgrade? My fingers are crossed!
Cheers, Ian