Two bad pictures I know but the difference can be seen below. The Portuguese bird was taken last week at Europes most south-westerly point, Cape St. Vincent, while the second photo shows a Great Orme bird taken in the last week of March, 2012.
There's also a female Black redstart on the Orme at the moment above the Gun-site, while 6 Northern Wheateasr and 5 Sandwich terns were the only other birds of note this morning.
Phoenicurus ochruros ssp. aterrimus - Cape st. Vincent, Portugal March 2013
Phoenicurus ochruros ssp. gibraltariensis - Great Orme , March 2012