An adult male Magnificent Frigatebird. Good views but really it's just seperated on range as adult male Ascension Frigatebirds basically look the same and are often considered impossible to seperate in the field. There were no pale brown wingbars above (thus separating male Great Frigatebird) but aberrant male Mag Frigs can also show this feature to complicate things further (c) Richard Brown
An adult female Mag Frig. Lets hope for one of these on Bardsey as we can actually identify this (given such belting views). The black head extends as a well defined V down the white upper breast. The black of the vent forms another V pointing towards that of the throat. There's an indistinct greyish collar, just visible here. The white tips to the axillaries form diagnostic wavy lines on the underwing (c) Richard Brown
But when BBRC are faced with my claim of Magnificent Frigatebird the plot thickens. There are several intermediate phases between the above photos and the amount of overlap with other species is considerable. Ultimately a good photo showing anything between a juvenile with white axillary lines and an adult female might be the only way to get a fly-by accepted.