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Wild Bird Populations in EnglandWintering waterbirds, individual species trends, based on smoothed trend data 1975-76 to 2013-14
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Download this file| Wintering waterbirds | Species | Long term percentage change (1975/76 - 2013/14) | Long term Annual percentage change (1975/76 - 2013/14) | Long term Trend (1975/76 - 2013/14) | Short term percentage change (2008/09-2013/14) | Short term Annual percentage change (2008/09-2013/14) | Short term Trend (2008/09-2013/14) |
|---|---|---|---|---|---|---|---|
| Wildfowl (22) | Mute Swan (Cygnus olor) | 180 | 2.75 | weak increase | -13 | -2.64 | weak decline |
| Wildfowl (22) | Bewick's Swan (Cygnus columbianus) | -43 | -1.45 | weak decline | -64 | -18.3 | strong decline |
| Wildfowl (22) | Whooper Swan (Cygnus cygnus) | 1369 | 7.33 | strong increase | -2 | -0.48 | no change |
| Wildfowl (22) | Pink-footed Goose (Anser brachyrhynchus) | 344 | 4 | strong increase | -6 | -1.22 | weak decline |