Yelkouan shearwater Menorca. A study of these birds recommended that a combination of morphological characteristics and DNA sequence data should be required at least for scientific purposes to assign individual birds to either species. It was formerly considered a subspecies of the Manx shearwater (see there for more on the "Puffinus puffinus" superspecies). After the first split, it was the nominate subspecies of the so-called "Mediterranean shearwater" for nearly ten more years; it is considered a monotypic species now, as the Balearic form "mauretanicus" has been separated as the Balearic shearwater. The yelkouan shearwater appears to belong to a group of Mediterranean
Ponta dos Rosais and agricultural areas, with most of the region taken-up by rural activities. Tourists visiting the area are attracted by the diversity of migratory and maritime bird species that nest in the cliffs of the point, including the migratory Corey's Shearwater ("Calonectris diomedea") and Little shearwater ("Puffinus assimilis"), but also the Roseate ("Sterna dougallii") and Common Terns ("Sterna hirundo"). Endemic predator species in these areas include feral cats and dogs, as well as rodents, but the latter limited by local kite species. But, the region is a hothouse of Azorean heather ("Erica azorica") and Forget-me-nots ("Myosotis azorica"). Ponta dos Rosais Ponta