Page 100 - Complete Birds of Britain and Europe (DK - RSPB)
P. 100

WILDFOWL
       Order Anseriformes     Family Anatidae        Species Branta leucopsis
        Barnacle Goose                                              black eye
                                                                    patch
                                                     small, stubby
                                                     black bill
                                cream-tinged white face
                                (pure white on juvenile)
                                                                    glossy
                    pale grey                                       black neck
                    wings                                           and chest
                   ADULT
                                        ADULT
            IN FLIGHT
                            blue-grey back with
                            black and white bars
                            (irregular on juvenile)
                   strongly contrasted
                   wings and underside
                                                                 white
                                                                 underside


              ADULT


        FLIGHT: strong, quick; flocks form irregular packs.
                                                                    ADULT
          ew birds so numerous as this are restricted to such
        Flocalized, traditional wintering sites. Barnacle
        Geese are predictably found, mostly on protected
        areas, from autumn until late spring, and are generally
        rather shy and unapproachable except when viewed
        from hides.They are not nearly so widespread as
        Canada Geese and, except for a handful of escapees
        and semi-tame groups, not so “suburbanized”.Adult
        birds have strongly contrasted upper- and underparts,  CONTRASTED COLOURS
        while the juveniles are duller and lack the cream tinge  Barnacle Geese, like other goose
        on the white face, which is so evident in the adults.  species, are especially prone to
        VOICE Harsh, short bark, creating chattering,  showing strong contrasts in low
        yapping, unmusical chorus from flocks.  winter sun.
        NESTING Feather-lined nest on ground or on cliff
        ledges in Arctic tundra; 4–6 eggs; 1 brood; May–June.
        FEEDING Large flocks graze on grass, clover, and
        similar vegetation.
                 SIMILAR SPECIES                          OCCURRENCE
                                                          Breeds in Greenland and Svalbard
        BRENT GOOSE       white chinstrap                 with populations remaining
        see p.99
                    dark  brown back                      separate all year. Mostly in Iceland,
                    face                                  W Scotland, Ireland, and Low
                                                          Countries in winter, with migrants
                                                          through Baltic, on grassy pastures
                   smaller and           IRREGULAR FLOCK  and salt marshes.
                   darker
                                         Flocks of Barnacle Geese form
                        CANADA GOOSE     irregular packs in flight, not “V”s  Seen in the UK
                        see p.97                           JF M A  M J  JA S ON D
                                         or chevrons.
       Length  58–70cm (23–28in)  Wingspan  1.32–1.45m (4 1 ⁄4 –4 3 ⁄4ft)  Weight  1.5–2kg (3 1 ⁄4 –4 1 ⁄2lb)
       Social  Flocks         Lifespan  Up to 18 years  Status  Localized
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