Page 407 - Complete Birds of Britain and Europe (DK - RSPB)
P. 407

PETRELS AND SHEARWATERS
       Family Procellariidae  Species Puffinus gravis  Family Procellariidae  Species Puffinus assimilis
       Great Shearwater                   Little Shearwater
       Breeding in the southern oceans    The Little Shearwater is like a small, slightly dumpy
       and migrating north in the         Manx Shearwater (see p.67), often with a paler grey
       northern summer and autumn,        inner wing/black outer wing contrast and with more
       the Great Shearwater is a master  brown  extensive white on its face quite easy to see at
       of its challenging marine  back    moderate range. It must nevertheless be watched with
       environment. It banks steeply  dark  care in order to prove its identity, especially outside its
       and often to a great height,  brown  normal range. It flies with rather fast wingbeats and
       gliding at speed with       cap    few, short glides.
       few flaps. Its dark                OCCURRENCE Breeds in Azores, Madeira, and
       brown cap looks                    Canaries;rare off NW Europe,in summer and autumn.
       black at a distance,               VOICE Rhythmic laughing notes at colony at night.
       and the brown back, narrow  narrow
                                   white
       white collar, white over the tail,  collar  dark upperparts  extensive white
       and dark patches under the wing                          on face
       all aid identification.
       OCCURRENCE Rare to
       moderately common well out at
       sea off W Europe, from August
       to October.
       VOICE Silent.



       Length 43–51cm (17–20in)  Wingspan 1.05–1.22m (3 1 ⁄2 –4ft)  Length 25–30cm (10–12in)  Wingspan 58–67cm (23–26in)

       Family Procellariidae  Species Puffinus yelkouan  Family Procellariidae  Species Puffinus griseus
       Mediterranean Shearwater           Sooty Shearwater
       Mediterranean “Manx” shearwaters are now separated  One of the southern ocean seabirds that migrates
       as a full species or even split into two species. East  north in the European summer, the Sooty Shearwater
       Mediterranean birds (Yelkouan) are like small, more  is regularly seen off some headlands and ferry routes
       flappy Manx Shearwaters with feet projecting slightly  in West European seas. It is slightly pot-bellied, with
       beyond the tail, while the western ones (Balearic) are  long, narrow, angular wings, and appears all dark
       browner both above and below, but paler and smaller  except for a variably pale underwing panel that
       than Sooty Shearwaters.These birds may be seen on  typically looks like a soft, silvery white central patch.
       or low over the sea off Mediterranean shores in summer.  The Sooty Shearwater is quite noticeably larger than
       OCCURRENCE Breeds in coast and islands in  a Manx Shearwater (see p.67) when they are seen
       Mediterranean; a few north to North Sea.  together, and can resemble a dark skua at times.
       VOICE                              OCCURRENCE Biscay, Irish and British coasts, from
       Strangled,                         August to October.
                     brownish
       yodelling     above                VOICE Silent.
       notes over
       colonies at                              all-dark appearance
       night.








       Length 34–39cm (13 1 ⁄2 –15 1 ⁄2in)  Wingspan 78–90cm (31–35in)  Length 40–50cm (16–20in)   Wingspan 0.95–1.1m (3–3 1 ⁄2ft)
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