Page 93 - Complete Birds of Britain and Europe (DK - RSPB)
P. 93

WILDFOWL
       Order Anseriformes     Family Anatidae        Species Cygnus cygnus
        Whooper Swan                                             long yellow
                                                                 wedge on side
                                                                 of bill extends
                                                                 beyond nostrils
                      slender
                      neck
                                         ADULT
                                         (TAKING OFF)   long neck
                                                                      black
                                                                      tip
                     ADULT  long, flat  all-white
                          forehead  plumage
            IN FLIGHT     and bill
                            short tail
          greyish         horizontal,
          body            pinkish or creamy,
                          black-tipped bill


                                                                short legs
               JUVENILE
           larger version of Bewick’s Swan, but
        A breeding in less northerly areas, the Whooper            ADULT
        Swan often winters in separate areas, although in places it can
        be found together with the Mute Swan and Bewick’s Swan.The
        Whooper Swan is a wild, usually shy bird, far less approachable than  FLIGHT: powerful and direct; regular wingbeats
        the Mute Swan and, like Bewick’s, usually more terrestrial.Although  with little wing noise.
        equally large, it is a more agile bird than the Mute Swan; however,
        the Whooper Swan lacks the arch-necked elegance (it holds its neck
        bolt upright and head horizontal) and rich bill colours of the latter.
        VOICE Loud trumpeting call, slightly lower-pitched; simpler bugling
        than Bewick’s Swan, often three or four syllables instead of two.
        NESTING Big, domed structure of grass and reed stems at water’s
        edge or built up from bottom of
        shallow lake; 5–8 eggs; 1 brood;
        April–June.                               UPRIGHT NECKS
        FEEDING Plucks leaves and                 Whooper Swans have long, slim necks, held upright,
        stems from short vegetation on            with head horizontal, when alert.
        dry ground, or digs roots and
        waste crops from ploughed                 DENSE FLOCKS
        earth; feeds on aquatic plants            Whooper Swans are found in dense flocks on a few
        mostly in summer.                         nature reserves where they are fed.
                 SIMILAR SPECIES                          OCCURRENCE
                                                          Breeds in Scandinavia and Iceland
         BEWICK’SSWAN   less yellow on bill               on remote pools; in winter locally
         see p.92
              rounder                                     across NW and C to SE Europe on
              head
                                                          large lakes and marshes. Increasing
            smaller                                       numbers winter on reserves with
                                                          Bewick’s Swans, taking advantage
                                                          of artificial feeding.
                           MUTE SWAN  reddish              Seen in the UK
                           see p.90  orange bill           JF M A  M J  JA S ON D
       Length  1.4–1.6m (4 1 ⁄2 –5 1 ⁄4ft)  Wingspan  2.05–2.35m (6 3 ⁄4 –7 3 ⁄4ft)  Weight  9–11kg (20–24lb)
       Social  Flocks         Lifespan  Up to 10 years  Status  Secure
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