Little Grebe
Tachybaptus ruficollis

These small grebes are easily missed and sometimes mistaken for ducklings at a distance. The first three are all adults in their summer plumages and a chick in the third photo. The fourth is a winter adult.
 

  

  

1-2: Basingstoke Canal, 30/08/2005.
3: Basingstoke Canal, 08/07/2006.
4: Radipole Lake RSPB, 23/01/2007.