Algarve Shearwater (1 Viewer)

[ndsutcliffe]

Taken this morning from Salema beach, Algarve Portugal. There were lots of Balearics all heading west. In this sequence, in each photo there is a bird with a whiter chin, and whiter undertail coverts, and with much less darkness in the armpits (partially obscured in the second photo). These photos were all taken within a minute, so I think it's a high chance that it's the same bird in each of these photos. So I'm thinking Manx, but looking at Collins, I'm not sure I can exclude Yelkouan, although that would be considerably rarer, and a bit off patch.
Views appreciated, thanks.

 

[Andrew Whitehouse]

It does look potentially good for Yelkouan e.g. dark axillary bar, lack of obvious white auricular, apparent dark undertail. I don't if it's possible to be 100% certain on these images but a decent candidate.

 

[ndsutcliffe]

A few more from the same sequence - not sure if it will make things any clearer, but worth a try