Incredible photo. Congratulations! I think this is one of the best images I have seen of the species, which is difficult to photograph, as usually is seen at some distance in flight.

Best regards. 

Jammer van de Bonte Stofjes maar die komen nog wel. Wat een plaat!!

Het recente artikel in DB er eens bij gepakt over de herkenning van baroli en boydi. De combinatie van witte onderstaartdekveren, veel wit rondom oog ('classic'), veel wit op de handpennen en weinig zijborstvlek sluit boydi uit. De tweekleurige bovenvleugel (te zien op andere foto's) ondersteunt eveneens baroli. De vleugelstreep (net te zien op deze foto) past goed op baroli, maar kan ook passen op een verse boydi.

Hi again.

Apart from the very interesting and useful article on Puffinus baroli and P. boydi mentioned by Eduard, there is additional information on the subject in the superb monographic book of Magnus Robb et al. (2008) entitled Petrels night and day, where you can find nice drawings and good data, apart from recordings of the voices of both species in the CD of sounds. 

Ziet er veel belovend uit.

Interessant, soort technisch overzie ik de consquenties niet, George?

In 2015 Gerbrand Machielsen told me hè had a kolonie of barolo breeding at the cliffs near his house on Sao Miguel (at a viewing point). Hé is unfortunatly not participating anymore on this forum. Ruben do you know if they are still breeding there? Hé told me that you could see and hear them from shore there in April.

Hi again, Max.

I haven't been in the Azores since September 1996 and I don't know the site you mention. In my two visits to this archipelago, I couldn't hear the species on Sao Miguel or other islands, but I was not searching for it, as at that time it was quite easy to hear and to see Barolo Shearwaters here, in the Canaries. Now it's more difficult, due to its status of very rare and critically endangered species...

Best regards. 

Still happy with this bonus. Saw them well in 98 but are confused about the ones (quite a lot) that I saw in the afternoon in August 2000 in Porto Moniz, Madeira. Could this, at time, still be true/possible or dit I make mistake with Manx?

Hi again.

In August/September it's possible to see a good migration of Manx Shearwaters going to southern waters in the Atlantic from Madeira and the Canaries, but these months can be good also to see Barolos, at least in the Canaries. Barolos tend to fly very fast and with continuous movements of the wings, quite different from the type of flight of Manx Shearwaters, not so fast and with fewer wing movements. Apart from this, there are evident differences in the shape and length of the wings.  

Best regards. 

Yes I know and I noted and wrote down these diffrences (eye in white) in my discription but experienced birders in later years almost not see barolo’s at Porto Moniz anymore. That is where my doubt slipped in. I do not know how big the population in Madeira was in 2000?

Hi again.

I don't know the population status of Barolo Shearwater on Madeira, but the fact that it's quite difficult to find it on a pelagic tour around the island or going from Madeira to the Desertas, implies that the size of the local population is quite low. In my experience with a ship in open seas or from land with a scope, normally you see Barolos alone or with a maximum of two birds together, while Manx Shearwaters migrate in flocks, being possible to see up to 6-8 birds together or even more. 

Best regards. 

Sangster, G, Robb, M, Mackin, WA & Bolton, M 2024. Vocalizations and species-limits in the North Atlantic clade of small shearwaters (Procellariiformes: Puffinus). Biological Journal of the Linnean Society, blae008 (in press).

Please send me a direct message if you would like a pdf: g.sangster AT planet DOT nl.